My own! It would mean that I became famous because I made $10,000,000 on Hubpages!
However, if I really had to re-read one it would be on Stephen Hawkins - to know you have a disease as a young man that will cripple you and effectively 'end' your life, and yet to continue on and continue through these difficulties to come up with the most amazing theories since Einstein is incredible.
I've seen a documentary on his life, but I'd prefer to read a biography. It would be even better if he was able to complete and auto-biogrpahy. One of the greatest mind of our time IMHO.