Reddit reviews Sybil Exposed: The Extraordinary Story Behind the Famous Multiple Personality Case

James Rollins' Sigma Force Series is fiction but focuses on historical artifacts and conspiracies. I find them very interesting and often, I go off and do some of my own research after reading one of them.

As for psychology, are you familiar with the book Sybil? I recently read Sybil Exposed, which breaks down the original book and tries to separate the truth from what was manufactured by the author. If you haven't read Sybil, definitely read that first though!