If you're a Christian, then you should read this book, but you'll probably wish that you hadn't! If you're a non-Christian, then this offers a fascinating insight into the origins of the biblical texts, revealing the many surprisingly contradictory elements - some of which are monumental - and the many instances of forgery. As an atheist, this book gave me a fairly comprehensive overview of the bibles content, without getting bogged down in religious ideology, though it does delve into this area. The book is not intended to completely debunk the bible's ideological message, but principally to question its religious value; it analyses its historical construction, demonstrates that "God" played little part (if any) in that construction or the textual content, while showing that Jesus (whoever he really was) did not invent Christianity and was certainly not divine.
My only criticism is that it is at times rambling, repetitive and lacking in eloquence. Nonetheless, I found it to be pretty addictive reading.
In conclusion, whatever your specific views of Christianity are, this book represents a fascinating revelation.