Holy Hullabaloos by Jay Wexler
This book takes complex court cases involving religions vs the state and breaks them down into something easy to understand. Along the way, the author is quite amusing. I find him amusing probably because religiously, I am the same alignment as the author. I imagine many of those who are far "right" in their religious views will not be as amused as I was.
This book is definitely a great overview to the many court (read Supreme Court usually) cases which shape our nation's policies toward the separation of church and state and religious freedoms. It also gives a fascinating glimpse of the characters behind these court cases.
Disclaimer: I won this for free as part of First Reads.