The document discusses data science and why it is considered the sexiest job of the 21st century. It provides an overview of data science, including what it is, the skills required, and common career paths and job roles for data scientists. Examples are given of how companies are using data science for applications like predictive analytics, recommendations, customer acquisition, and churn prevention. While data science jobs are highly sought after and pay well, there is also a lack of qualified candidates, contributing to why it is seen as such an attractive and desirable career.