The first book that let me understand investing was this, but I am sure this is an updated edition:
Amazon.com: Kiplinger's Guide to Investing Success: Making Money Today in Stocks, Bonds, Mutual Funds, and the Real Estate (Kiplinger's Personal Finance) (9781419535673): Kiplinger's Personal Finance Magazine Editors: Books
I really like Kiplingers products - their magazine and books. I have heard it criticized as the "USA Today" of financial news. . .but I think that's a good thing.
I am a USA Today kind of guy, lol. . .not Times or Wall Street Journal. You know. . .pina coladas and pink champagne.