I just finished this book , and it was fantastic if you used to have a Commodore or are generally interested in the start of the home computer scene:
http://www.commodorebook.com/
I used to have an Amiga so that's what interested me in the book and it does devote about a third to the Amiga, Commodores abysmal magagment of the Amiga and the eventual collapse. But most of the book is spent on the 8 bit years, and how Commodore invented the world most successful home computer (the C64 - about 22m sales). The main protagonist is Jack Tramiel whose character is described ery well.
The books really well written and I highly recommend it!