James Floyd Kelly has participated in numerous FLL tournaments as both a referee and a technical judge. In 2006, he founded The NXT Step blog (www.thenxtstep.com), widely considered the top LEGO MINDSTORMS NXT resource on the web. Kelly is the author of LEGO MINDSTORMS NXT: The Mayan Adventure and LEGO MINDSTORMS NXT-G Programming Guide (Apress) and a co-author of The LEGO MINDSTORMS NXT Idea Book (No Starch).