Yes, I know that Al already wrote a post about this book, but I thought that since it was a while ago, it would be good for those who did not read his post.
Anyway, I picked this up at Barnes and Noble a few weeks ago. At first, I was a little leary, but those feelings quickly went away. It was very well written. Shea started at the very beginning of the Cubs history, detailing the purchase of the land on which Wrigley now stands. It details changes made throughout the years. It also goes through the change of owner from Weeghman to Wrigley (then later from Wrigley to the Tribune Co). It also exposes many of the myths about Wrigley Field. I could go on and on about what the book details, but it would be better for you just to read the book.