Nobody has written a modern, high quality, comprehensive biography of Gates. I'd recommend these three: Hard Drive (1993), by James Wallace Gates (1992), by S

Nobody has written a modern, high quality, comprehensive biography of Gates. I'd recommend these three: Hard Drive (1993), by James Wallace Gates (1992), by Stephen Manes Idea Man (2011), by Paul Allen Idea Man is available for $5 on the Kindle right now and is an excellent read, however Gates is only a secondary major character for 1/3 of the book. It does cover the early days though. And Gates is available on the Kindle as well.