Are you looking for technical or fundamental readings?
Fundamentals:
I started with "Making the most of Your Money", by Jane Quinn
Followed that up years later with "Motely Fool Investment Guide", by David and Tom Gardner.
And finally, "Making dollars with Pennies", by Max Bowser.
Technicals:
"Technical Analysis for Dummies", by Barbara Rockfeller
"Technical Analysis of the Financial Markets", by John Murphy
Also recommend:
A book on psychological aspects of trading. I read "Trader's Secrets", by Murry Ruggiero and Adrienne Toghraie, but probably better ones out there.
Currently reading "Stock Investing for Everyone", by Arshad Khan and Vaqar Zuberi
Another recommendation would be to attend the Trader's Expo. They have several a year, and I've gone to the Vegas gathering a couple times. Good seminars available, and you get to see the latest wares being hawked <bg>.