John Baichtal has written or edited over a dozen books, including the award-winning Cult of Lego (2011 No Starch Press), LEGO hacker bible Make: LEGO and Arduino Projects (2012 Maker Media) with Adam Wolf and Matthew Beckler, as well as Robot Builder (Que 2013), and Hacking Your LEGO Mindstorms EV3 Kit (Que 2015). He’s hard at work on his latest project, a compilation of Minecraft projects for Maker Media. John lives in Minneapolis with his wife and three children. The LED Project Handbook contributors include Lenore Edman, James Floyd Kelly, Kristina Durivage, Kaas Baichtal, Sean O'Brien, Windell H. Oskay, Adam Wolf, Matthew Beckler, Michael Krumpus, and Mike Hord.

• Project 0: All About LEDs (Sean Michael Ragan)Project 1: Four Simple Projects (Lenore Edman and Windell Oskay)Project 2: Desktop UFO Lamp (James Floyd Kelly)Project 3: The Cheater's Digital Dice (JB)Project 4:  Surface-Mount LED Name Tag (Alex Dyba)Project 5: Yggflexisil: The Flexible Illuminated Tree (Erin Kennedy)Project 6: Realtime Music Visualizer (Michael Krumpus)Project 7: Automatic Infrared Air Conditioning (Kaas Baichtal)Project 8: Raspberry Potter Wand Remote (Sean O'Brien)Project 9: The Starfield Visualizer Box (Adam Wolf)Project 10: Optical Screwdriver Synthesizer (JB)Project 11: Magic-Gem Timing Bracer (Mike Hord)Project 12: Wearable LED Text Display Sash (Kristina Durivage)GlossaryList of Suppliers