While I enjoyed Bart Ehrman's Misquoting Jesus, I think I like this one was even better.
Here we are taken through a tour of the first generations following the death of Jesus and the many forms of Christianity that they practiced. He discusses why some flourished (able to claim ties to the antiquity of the Hebrew scriptures) and why some sects floundered (disagreements over the role of women.) It was very easy to follow along and see how each event contributed to the scripture and the forms of Christianity that have been handed down to us today.
I was just as fascinated with the stuff that almost made it into the New Testament (letters from Clement, Titus for example) as those that did.
Ehrman goes on to provide a clear context to understand the books of the Apocrypha as well. A lot of verses I never understood before suddenly made perfect sense when I was oriented in the right cultural beliefs. For example, in the Gospel of Thomas (alleged to have been written by Didamus Judas Thomas, Jesus's twin, but debunked by scholars) it says that women must become men to reach the Kingdom of God, Ehrman explains that Neo Platonists did not see the human race as having two genders, but only one. Ancients believed that women were males who never developed properly! Needless to say, that had never occurred to me. Suddenly, all became clear.
While this book may be too introductory for experts, it was fascinating to a lay person like me. Recommend.