Best-selling author Jack Schwager chronicled Ed Thorp's genius in his 2012 book  Hedge Fund Market Wizards.  Later, in an interview with
Opalesque, Schwager calls Thorp  the best he's ever seen: 

"he has, of all the traders I've ever interviewed, and in fact, of all the traders that ever existed, with the possible exception of [James] Simons with Renaissance [Technologies], and I'm not sure who has the better record, but he would, I'd think, have one of the two best records -- that has ever been compiled in trading -- in terms of return to risk.