The Machine

A Hot Team, A Legendary Season, and a Heart-Stopping World Series:
The Story of the 1975 Cincinnati Reds
Joe Posnanski - 2010 HarperCollins Publishers

Most Entertaining Baseball Books I've read thus far:
1. Ball Four
2. The Bullpen Gospels
3. The Machine

It's hard to encapsulate the enjoyment of this book in a few short words but suffice it say that it's one of those you'll stay up into the early hours of the morning racing to finish.  I did.

The Catcher was a Spy

The Mysterious Life of Moe Berg
Nicholas Dawidoff - 1995 Knopf Doubleday Publishing Group

There isn't much to write about this well researched book because it's not really a sports book. 

Brief mention is made of Berg's athletic career but most of the book focuses on his eccentric personality and life style.   By the end of the book I was more frustrated with Berg's wasted potential than fascinated by his "secret" life.