There are some interesting commentaries in there. I didn't read everything, but just looking at some of the "canonical" writings that are in our current Bible:
They claim that 2 Peter is the "newest" of eveything in the Bible, and clearly couldn't have been written by Peter. Their discussion of this book even seemed to have the tone of "should it even have been canonized?"
The authorship of many books seems to be in question.
It would appear that some of Paul's writings are the oldest we have.
Of the gospels, Mark is the oldest written. Matthew seems to borrow from Mark, suggesting that the four gospels aren't necessarily independent accounts.
On the other hand, considering that we are trying to go back 2000 years to recreate what happened, it is remarkable that we have anything at all.
My comments are probably only worth $0.02, but there they are.