Start with "Your Money and Your Brain," by former Money Magazine writer Jason Zweig, and learn how not to let fear sabotage your dreams.
Though "The Little Book of Common Sense Investing," by Vanguard founder John Bogle, is mainly an exhortation to buy index funds, it can help you keep your cool in hard times.
"We know that investing entails risk," writes Bogle. "But we also know that not investing dooms us to financial failure." Amen to that.
NEXT: Convert your old IRA to a Roth