Brian's book will give you a lot of information and make you think.
I just finished Matt's book. Took about 2 hours to read and now I'll take a lot of time to let it sink in and do all the exercises.
Although it is written primarily for the auto there is so much good information that can easily be transfered to the revolver shooter. Matt gives you many examples of how to pick up speed in draw, target aquisition, movement, sight picture etc.
And he asks the important question which is basically (What are you willing to do to improve)?