Palm Digital Media has released its list of April's top 10 best-selling eBooks.

Top 10 Best-selling Fiction Books

1. "The Da Vinci Code" by Dan Brown, Doubleday Books
2. "The Murder Book" by Jonathan Kellerman, Ballantine Books
3. "Angels & Demons" by Dan Brown, Pocket Books
4. "Darwin's Children" by Greg Bear, Del Rey Books
5. "The Sex Gates" by Darrell Bain, Double Dragon Publishing
6. "Lost Light" by Michael Connelly, Little, Brown & Co.
7. "Armageddon" by Jerry B. Jenkins & Tim LaHaye, Tyndale House
8. "Year Zero" by Jeff Long, Atria Books
9. "Masters of the Sex Gates" by Darrell Bain, Double Dragon Publishing
10. "Executive Power" by Vince Flynn, Atria Books

Top 10 Best-selling Non-fiction Books

1. "The Power of Positive Thinking" by Norman Vincent Peale, Fireside Books
2. New International Version Holy Bible, from Zondervan, HarperCollins PerfectBound
3. Merriam-Webster's Collegiate Dictionary, Tenth Edition, from Merriam-Webster
4. "The Art of War" by Sun Tzu, PDM Classics
5. "26 Nights, from the Editors of Penthouse Magazine," Warner Books
6. "7 Habits of Highly Effective People" by Stephen R. Covey, Franklin-Covey
7. "Procrastinator's Handbook" by Rita Emmett, Walker & Co.,
8. "The Threatening Storm" by Kenneth M. Pollack, Random House
9. "For A Change" by John C. Maxwell, Warner Books
10. "The Message" by Eugene H. Peterson, Godspeed Computing