The top 10 most popular forex books based on Amazon ranking are:

1. The Complete Guide to Currency Trading & Investing: How to Earn High Rates of Return Safely and Take Control of Your Investments by Jamaine Burrell
2. Day Trading For Dummies by Ann C. Logue
3. Fast Profits In Hard Times by Jordan E. Goodman
4. Forex Patterns & Probabilities by Ed Ponsi
5. Getting Started In Forex Trading Strategies by Michael Duane Archer
6. Getting Started In Currency Trading by Michael Duane Archer and James Lauren Bickford
7. Adventures of a Currency Trader by Rob Booker
8. Day Trading the Currency Market by Kathy Lien
9. The Forex Trading Course by Abe Cofnas
10. Candlestick and Pivot Point Trading Triggers by John Person