I liked Guy Kawasaki's "The Art of the Start" (http://www.amazon.com/Art-Start-Time-Tested-Battle-Hardened-...) because every time I picked it up, it motivated me to put it down and get back to work.

I am kind of surprised to see Steve Blank's "The Four Steps to the Epiphany" (http://www.amazon.com/Four-Steps-Epiphany-Steve-Blank/dp/098...) omitted. Is that one that everyone mentions, but nobody reads?