Here are their books:
http://www.amazon.com/CLEARING-HURDLES-OBriens-Gre... http://www.amazon.com/Redemption-Rebellious-Prayin... Both look very interesting.
Dr. Z's site lists books on other decathletes:
http://decathlonusa.typepad.com/deca/orderbooks.ht... There are quite a few out there on Daley, Jenner and Thorpe.
I'd love to read more on Sebrle, Avilov, Dvorak, Nool, Pappas, Holdorf, to name a few. Does anyone know of any more "decathlon" books that they can post?