I'm a programmer, author, and one of the founders of MartianCraft, a software development shop doing both contract and in-house software development.My iPhone books (both written with Dave Mark) are published by Apress. My first book, Beginning iPhone Development (currently in its th edition) is the all-time best-selling book on learning to program the iPhone and iPad. I also sculpt and take pictures when I need to engage the other side of my brain a little more.