Question: what are most read book?
Answer:  The Bible – 3.9 Billion Copies.  Quotations from the Works of Mao Tse-tung – 820 Million Copies.  Harry Potter – 400 Million Copies.  Lord of the Rings – 103 Million Copies.  The Alchemist – 65 Million Copies.  The Da Vinci Code – 57 Million Copies.  Twilight – The Saga – 43 Million Copies.