John Baichtal is a contributor to MAKE magazine and Wired’s GeekDad blog. He is the co-author of The Cult of LEGO (No Starch) and author of Hack This: 24 Incredible Hackerspace Projects from the DIY Movement (Que). Most recently he wrote Make: Lego and Arduino Projects for MAKE, collaborating with Adam Wolf and Matthew Beckler. He lives in Minneapolis, Minnesota, with his wife and three children.