Much of the book traces the history of the project and helps to soak up the Raspberry philosophy. The second part provides some basic techniques for handling and offers small enough didactic projects, however, reserved for children. Indeed, if you want to start on a project with a GPIO interface or I2C somewhat successful, it will rely on the many open source tutorials found on the internet, it is the same in French as wiki or blog McHobby Framboise314. Electronic side it's still fast, and it does not speak of MCPxxxxx entered-output extensions (only 2 I2C pins on the board) or ADC converters or level shifters (5V logic interfacing with the 3.3v Raspberry). Okay so for a first contact or to accompany a child from 8 to 12 who want to learn the basics in scratch and get a general education at the same level as the small English (them all that they learn in school). Geeks, go your way, you will remain necessarily on your hunger.