Arnaud Weil is a born developer: when he was a kid he was controlling his electric train using an Atari ST and some self-made electronics, then as a teenager created and distributed worldwide one of the first Web browsers for some of the first pocket computers, when the Web was just beginning. In fact, he loves coding. Turning a passion into a career, Arnaud has been coding all kinds of applications from factory tools to smartphone applications to house control solutions. His status as a freelancer allows him to help his clients with many different projects. But what Arnaud enjoys most is helping other developers: that's why he teaches, speaks, and writes books.