David Kadavy is author of the #18 Amazon best-selling book, Design for Hackers. Prior to writing Design for Hackers, David lead design at two Silicon Valley startups, freelanced for clients such as oDesk, PBworks, and UserVoice, and launched numerous startups of his own – none of which failed hard enough to be worthy of mention in this bio.

David's work has won international awards that only design snobs have heard of, and his email course has taught over 100,000 people the fundamentals of good design.