Once you clear away the Pauline epistles and drop what Acts has to say about Paul and read what Paul has to say about Paul, you have a considerable body of work. Indeed, there are few ancients whose work is so well attested and so personal. It is in clearing away the debris around the historical Paul that Wills excels.

As in his previous books, Wills works to strip away the anachronisms. The Road to Damascus takes place in Acts, but Paul never mentions it. Paul would not have considered that he converted. He was a Jew among Jews, who came to believe the Jesus was the promised Messiah. There was no "Christian" church to convert to. Not only that, there was nothing that we would call a church.

Paul pre-dates the Gospels and is the only writing we are certain was composed within the lives of the Twelve, while there were many witnesses alive. Far from creating something out of the death of a carpenter, Paul emerges from his own words as a most faithful follower of his Risen Messiah. This is a book I highly recommend.

Wills, Garry, 1934-What Paul meant.    
Introduction : "the bad news man"
1 - Paul and the risen Jesus
2 - Paul and the pre-resurrection Jesus
3 - Paul "on the road"
4 - Paul and Peter
5 - Paul and women
6 - Paul and the troubled gatherings
7 - Paul and Jews
8 - Paul and Jerusalem
9 - Paul and Rome
Afterword : misreading Paul
App - Translating Paul