SlideShare uma empresa Scribd logo

Pixel Vision PPT Template for PowerPoint Presentation

•
•
Indezine.com
Indezine.com

Free PowerPoint Templates http://www.indezine.com/powerpoint/templates/freetemplates.html Pixel Vision http://www.indezine.com/powerpoint/templates/526.html

NegóciosTecnologia
1 de 5
The County of Agentha presents
About Agentha ,[object Object],[object Object],[object Object],[object Object]
Proposed Growth Rate
Contact Info ,[object Object],[object Object],[object Object]
Copyright, Concept & Creation: Geetesh Bajaj

Recomendados

A presentation on computer viruses
A presentation on computer virusesA presentation on computer viruses
A presentation on computer virusesusmanakib
 
The Python Programming Language and HDF5: H5Py
The Python Programming Language and HDF5: H5PyThe Python Programming Language and HDF5: H5Py
The Python Programming Language and HDF5: H5PyThe HDF-EOS Tools and Information Center
 
virus and antivirus
virus and antivirusvirus and antivirus
virus and antivirusshashank kurakula
 
computer viruses power point presentation
computer viruses power point presentationcomputer viruses power point presentation
computer viruses power point presentationRohit Kashyap
 
Presentation Slide: Computer Virus
Presentation Slide: Computer VirusPresentation Slide: Computer Virus
Presentation Slide: Computer VirusYo Maruf
 
Presentation on Computer Viruses
Presentation on Computer Viruses Presentation on Computer Viruses
Presentation on Computer Viruses Mohak Jain
 
Computer viruses
Computer virusesComputer viruses
Computer virusesRaseena EV
 
presentation on cyber crime and security
presentation on cyber crime and securitypresentation on cyber crime and security
presentation on cyber crime and securityAlisha Korpal
 

Recomendados

A presentation on computer viruses
A presentation on computer virusesA presentation on computer viruses
A presentation on computer virusesusmanakib
 
The Python Programming Language and HDF5: H5Py
The Python Programming Language and HDF5: H5PyThe Python Programming Language and HDF5: H5Py
The Python Programming Language and HDF5: H5PyThe HDF-EOS Tools and Information Center
 
virus and antivirus
virus and antivirusvirus and antivirus
virus and antivirusshashank kurakula
 
computer viruses power point presentation
computer viruses power point presentationcomputer viruses power point presentation
computer viruses power point presentationRohit Kashyap
 
Presentation Slide: Computer Virus
Presentation Slide: Computer VirusPresentation Slide: Computer Virus
Presentation Slide: Computer VirusYo Maruf
 
Presentation on Computer Viruses
Presentation on Computer Viruses Presentation on Computer Viruses
Presentation on Computer Viruses Mohak Jain
 
Computer viruses
Computer virusesComputer viruses
Computer virusesRaseena EV
 
presentation on cyber crime and security
presentation on cyber crime and securitypresentation on cyber crime and security
presentation on cyber crime and securityAlisha Korpal
 
presentation on computer virus
presentation on computer viruspresentation on computer virus
presentation on computer virusYogesh Singh Rawat
 
Hard disk PPT
Hard disk PPTHard disk PPT
Hard disk PPTGeorge Ranson
 
Linux.ppt
Linux.ppt Linux.ppt
Linux.ppt onu9
 
Presentation on computer viruses
Presentation on computer virusesPresentation on computer viruses
Presentation on computer virusesNitish Xavier Tirkey
 
Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)ainizbahari97
 
Computer Virus powerpoint presentation
Computer Virus powerpoint presentationComputer Virus powerpoint presentation
Computer Virus powerpoint presentationshohrabkhan
 
Grayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPointGrayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPointIndezine.com
 
Photosynthesis
PhotosynthesisPhotosynthesis
PhotosynthesisIndezine.com
 
Classroom
ClassroomClassroom
ClassroomIndezine.com
 
Alphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint SlidesAlphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint SlidesIndezine.com
 
Alphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint SlidesAlphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint SlidesIndezine.com
 
Patriot day
Patriot dayPatriot day
Patriot dayIndezine.com
 
Formatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for WindowsFormatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for WindowsIndezine.com
 
Crop Theme in PowerPoint
Crop Theme in PowerPointCrop Theme in PowerPoint
Crop Theme in PowerPointIndezine.com
 
Animated Gears Again for power point slideshare
Animated Gears Again for power point slideshareAnimated Gears Again for power point slideshare
Animated Gears Again for power point slideshareIndezine.com
 
Colors: Blue
Colors: BlueColors: Blue
Colors: BlueIndezine.com
 
Waveform Theme in PowerPoint
Waveform Theme in PowerPointWaveform Theme in PowerPoint
Waveform Theme in PowerPointIndezine.com
 
Vapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPointVapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPointIndezine.com
 
Parallax Theme in PowerPoint
Parallax Theme in PowerPointParallax Theme in PowerPoint
Parallax Theme in PowerPointIndezine.com
 
Oriel Theme in PowerPoint
Oriel Theme in PowerPointOriel Theme in PowerPoint
Oriel Theme in PowerPointIndezine.com
 
Organic Theme in PowerPoint
Organic Theme in PowerPointOrganic Theme in PowerPoint
Organic Theme in PowerPointIndezine.com
 
Metropolitan Theme in PowerPoint
Metropolitan Theme in PowerPointMetropolitan Theme in PowerPoint
Metropolitan Theme in PowerPointIndezine.com
 

Mais conteúdo relacionado

Destaque

presentation on computer virus
presentation on computer viruspresentation on computer virus
presentation on computer virusYogesh Singh Rawat
 
Linux.ppt
Linux.ppt Linux.ppt
Linux.ppt onu9
 
Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)ainizbahari97
 
Computer Virus powerpoint presentation
Computer Virus powerpoint presentationComputer Virus powerpoint presentation
Computer Virus powerpoint presentationshohrabkhan
 

Destaque (6)

presentation on computer virus
presentation on computer viruspresentation on computer virus
presentation on computer virus
 
Hard disk PPT
Hard disk PPTHard disk PPT
Hard disk PPT
 
Linux.ppt
Linux.ppt Linux.ppt
Linux.ppt
 
Presentation on computer viruses
Presentation on computer virusesPresentation on computer viruses
Presentation on computer viruses
 
Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)Computer virus (Microsoft Powerpoint)
Computer virus (Microsoft Powerpoint)
 
Computer Virus powerpoint presentation
Computer Virus powerpoint presentationComputer Virus powerpoint presentation
Computer Virus powerpoint presentation
 

Mais de Indezine.com

Grayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPointGrayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPointIndezine.com
 
Alphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint SlidesAlphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint SlidesIndezine.com
 
Alphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint SlidesAlphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint SlidesIndezine.com
 
Formatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for WindowsFormatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for WindowsIndezine.com
 
Crop Theme in PowerPoint
Crop Theme in PowerPointCrop Theme in PowerPoint
Crop Theme in PowerPointIndezine.com
 
Animated Gears Again for power point slideshare
Animated Gears Again for power point slideshareAnimated Gears Again for power point slideshare
Animated Gears Again for power point slideshareIndezine.com
 
Waveform Theme in PowerPoint
Waveform Theme in PowerPointWaveform Theme in PowerPoint
Waveform Theme in PowerPointIndezine.com
 
Vapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPointVapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPointIndezine.com
 
Parallax Theme in PowerPoint
Parallax Theme in PowerPointParallax Theme in PowerPoint
Parallax Theme in PowerPointIndezine.com
 
Oriel Theme in PowerPoint
Oriel Theme in PowerPointOriel Theme in PowerPoint
Oriel Theme in PowerPointIndezine.com
 
Organic Theme in PowerPoint
Organic Theme in PowerPointOrganic Theme in PowerPoint
Organic Theme in PowerPointIndezine.com
 
Metropolitan Theme in PowerPoint
Metropolitan Theme in PowerPointMetropolitan Theme in PowerPoint
Metropolitan Theme in PowerPointIndezine.com
 
Grid Theme in PowerPoint
Grid Theme in PowerPointGrid Theme in PowerPoint
Grid Theme in PowerPointIndezine.com
 
Flow Theme in PowerPoint
Flow Theme in PowerPointFlow Theme in PowerPoint
Flow Theme in PowerPointIndezine.com
 
Droplet Theme in PowerPoint
Droplet Theme in PowerPointDroplet Theme in PowerPoint
Droplet Theme in PowerPointIndezine.com
 
Concourse Theme in PowerPoint
Concourse Theme in PowerPointConcourse Theme in PowerPoint
Concourse Theme in PowerPointIndezine.com
 

Mais de Indezine.com (20)

Grayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPointGrayscale to Color Pictures in PowerPoint
Grayscale to Color Pictures in PowerPoint
 
Photosynthesis
PhotosynthesisPhotosynthesis
Photosynthesis
 
Classroom
ClassroomClassroom
Classroom
 
Alphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint SlidesAlphabets 02 PowerPoint Slides
Alphabets 02 PowerPoint Slides
 
Alphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint SlidesAlphabets 01 PowerPoint Slides
Alphabets 01 PowerPoint Slides
 
Patriot day
Patriot dayPatriot day
Patriot day
 
Formatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for WindowsFormatting 3D Style in PowerPoint 2003 for Windows
Formatting 3D Style in PowerPoint 2003 for Windows
 
Crop Theme in PowerPoint
Crop Theme in PowerPointCrop Theme in PowerPoint
Crop Theme in PowerPoint
 
Animated Gears Again for power point slideshare
Animated Gears Again for power point slideshareAnimated Gears Again for power point slideshare
Animated Gears Again for power point slideshare
 
Colors: Blue
Colors: BlueColors: Blue
Colors: Blue
 
Waveform Theme in PowerPoint
Waveform Theme in PowerPointWaveform Theme in PowerPoint
Waveform Theme in PowerPoint
 
Vapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPointVapor Trail Theme in PowerPoint
Vapor Trail Theme in PowerPoint
 
Parallax Theme in PowerPoint
Parallax Theme in PowerPointParallax Theme in PowerPoint
Parallax Theme in PowerPoint
 
Oriel Theme in PowerPoint
Oriel Theme in PowerPointOriel Theme in PowerPoint
Oriel Theme in PowerPoint
 
Organic Theme in PowerPoint
Organic Theme in PowerPointOrganic Theme in PowerPoint
Organic Theme in PowerPoint
 
Metropolitan Theme in PowerPoint
Metropolitan Theme in PowerPointMetropolitan Theme in PowerPoint
Metropolitan Theme in PowerPoint
 
Grid Theme in PowerPoint
Grid Theme in PowerPointGrid Theme in PowerPoint
Grid Theme in PowerPoint
 
Flow Theme in PowerPoint
Flow Theme in PowerPointFlow Theme in PowerPoint
Flow Theme in PowerPoint
 
Droplet Theme in PowerPoint
Droplet Theme in PowerPointDroplet Theme in PowerPoint
Droplet Theme in PowerPoint
 
Concourse Theme in PowerPoint
Concourse Theme in PowerPointConcourse Theme in PowerPoint
Concourse Theme in PowerPoint
 

Último

M.C Lodges -- Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.M.C Lodges -- Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.Aaiza Hassan
 
Famous Olympic Siblings from the 21st Century
Famous Olympic Siblings from the 21st CenturyFamous Olympic Siblings from the 21st Century
Famous Olympic Siblings from the 21st Centuryrwgiffor
 
It will be International Nurses' Day on 12 May
It will be International Nurses' Day on 12 MayIt will be International Nurses' Day on 12 May
It will be International Nurses' Day on 12 MayNZSG
 
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best Services
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best ServicesMysore Call Girls 8617370543 WhatsApp Number 24x7 Best Services
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best ServicesDipal Arora
 
Value Proposition canvas- Customer needs and pains
Value Proposition canvas- Customer needs and painsValue Proposition canvas- Customer needs and pains
Value Proposition canvas- Customer needs and painsP&CO
 
Call Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room ServiceCall Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room Servicediscovermytutordmt
 
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756dollysharma2066
 
Monthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxMonthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxAndy Lambert
 
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Pune Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...lizamodels9
 
Grateful 7 speech thanking everyone that has helped.pdf
Grateful 7 speech thanking everyone that has helped.pdfGrateful 7 speech thanking everyone that has helped.pdf
Grateful 7 speech thanking everyone that has helped.pdfPaul Menig
 
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Lviv Startup Club
 
A DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMANA DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMANIlamathiKannappan
 
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdfRenandantas16
 
HONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsHONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsMichael W. Hawkins
 
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...anilsa9823
 
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfDr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfAdmir Softic
 
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...Dave Litwiller
 
How to Get Started in Social Media for Art League City
How to Get Started in Social Media for Art League CityHow to Get Started in Social Media for Art League City
How to Get Started in Social Media for Art League CityEric T. Tung
 

Último (20)

M.C Lodges -- Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.M.C Lodges -- Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.
 
Famous Olympic Siblings from the 21st Century
Famous Olympic Siblings from the 21st CenturyFamous Olympic Siblings from the 21st Century
Famous Olympic Siblings from the 21st Century
 
It will be International Nurses' Day on 12 May
It will be International Nurses' Day on 12 MayIt will be International Nurses' Day on 12 May
It will be International Nurses' Day on 12 May
 
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best Services
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best ServicesMysore Call Girls 8617370543 WhatsApp Number 24x7 Best Services
Mysore Call Girls 8617370543 WhatsApp Number 24x7 Best Services
 
Value Proposition canvas- Customer needs and pains
Value Proposition canvas- Customer needs and painsValue Proposition canvas- Customer needs and pains
Value Proposition canvas- Customer needs and pains
 
Call Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room ServiceCall Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room Service
 
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
 
Monthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxMonthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptx
 
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Pune Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Pune Just Call 9907093804 Top Class Call Girl Service Available
 
Mifty kit IN Salmiya (+918133066128) Abortion pills IN Salmiyah Cytotec pills
Mifty kit IN Salmiya (+918133066128) Abortion pills IN Salmiyah Cytotec pillsMifty kit IN Salmiya (+918133066128) Abortion pills IN Salmiyah Cytotec pills
Mifty kit IN Salmiya (+918133066128) Abortion pills IN Salmiyah Cytotec pills
 
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...
Russian Call Girls In Gurgaon ❤️8448577510 ⊹Best Escorts Service In 24/7 Delh...
 
Grateful 7 speech thanking everyone that has helped.pdf
Grateful 7 speech thanking everyone that has helped.pdfGrateful 7 speech thanking everyone that has helped.pdf
Grateful 7 speech thanking everyone that has helped.pdf
 
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
 
A DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMANA DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMAN
 
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
 
HONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsHONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael Hawkins
 
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...
Lucknow 💋 Escorts in Lucknow - 450+ Call Girl Cash Payment 8923113531 Neha Th...
 
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfDr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
 
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...
Enhancing and Restoring Safety & Quality Cultures - Dave Litwiller - May 2024...
 
How to Get Started in Social Media for Art League City
How to Get Started in Social Media for Art League CityHow to Get Started in Social Media for Art League City
How to Get Started in Social Media for Art League City
 

Pixel Vision PPT Template for PowerPoint Presentation