I recently read 2 great books about Google. I love to read books about the early days of companies.
Check out these two – they are both worth reading.
In the Plex
This is a great all-around Google book with details on different parts of the business. From what I can tell (I have skimmed others) – this seems like the best in-depth Google book.

I’m Feeling Lucky
This one is written from the perspective of a Google (Marketing) employee. Well written and a lot more on the personal level than In the Plex. You get stories at a really personal level from early in the life of Google. There are funny moments and stressful moments. Entertaining.