The Bible - 3.9 Billion Copies
Quotations from the Works of Mao Tse-tung - 820 Million Copies
The Harry Potter series (by J. K. Rowling) - 400 Million Copies
Lord of the Rings (by J. R. R. Tolkien) - 103 Million Copies
The Alchemist (by Paulo Coelho) - 65 Million Copies
The Da Vinci Code (by Dan Brown) - 57 Million Copies
Twilight - The Saga (by Stephenie Meyer) - 43 Million Copies
Gone With the Wind (by Margaret Mitchell) - 33 Million Copies
Think and Grow Rich (by Napoleon Hill) - 30 Million Copies
Diary of Anne Frank (by Anne Frank) - 27 Million Copies