Love ‘em or loathe ‘em, you can’t ignore these characters — or their new books.

The Only Three Questions That Count
by Ken Fisher ($33.99, Wiley)

Fisher, one of the best-known money managers in the U.S., believes you should invest only when you have an edge on others. In this entertaining book, he explains how to look for that edge. He also explains why you shouldn’t worry about government deficits, overburdened consumers or giant trade deficits.

Our take: You have to respect a guy who’s managed to beat the market over the long haul. Fisher comes out swinging and makes you think twice about many of your most cherished investing beliefs.

The Big Picture
by Barry Ritholtz (free, BigPicture.typepad.com)