This document discusses robots that are designed for both children and adults to program and build. It mentions Seymour Papert's 1980 book "Mindstorms" which helped popularize the idea of using programmable robots to teach children problem solving skills. The document also highlights various sensors and add-ons that can be used with robots like LEGO Mindstorms to give them additional capabilities like seeing, hearing, sensing location and movement. The goal is to inspire children to get interested in computer programming and engineering by making hacking and building robots a game.