This has probably been posted before, however, I would like to fully recommend Disney War by James B. Stewart.
It is not just for the Hardcore Disney Fan or even the casual fan. It is an interesting read for anyone that is interested in Disney, the entertainment industry, or even corporate politics.
I am about to finish it up and I can't wait. I have about 28 pages left. It starts with Eisner at paramount and goes all the way through to his leaving the company. There are also many interesting stories that ranged from amusing me to completely flooring me. One example is Eisner passing on the lord of the rings because he said that they would never make good movies!
Anyways I highly recommend it, although it is 528 pages, its hard to put down and a pretty easy read. Hope some pick it up and check it out, enjoy!