Sex book with 200 blank pages outsells 'Harry Potter, The Da Vinci Code'

It might be no surprise that a book on sex is a best seller and has outsold both Harry Potter and The Da Vinci Code within weeks of its release on Amazon.com.

However, what might shock you is that the book What Every Man Thinks About Apart From Sex, written by British author Sheridan Simove, has only a front cover and 200 completely blank pages, reports the Daily Mail.

The £4.69 masterpiece has transcended its original purpose as a novelty gift, and has become a hit with the students, who are using it as a lecture notebook.

“I never anticipated that my book would be used for students to take their lecture notes in,” said the 39-year-old author of the book.

“In a sense they are proving me wrong by filling my book with content. But I wonder how many of them go back to thinking about sex once the lecture is over,” he added.

The item has sold out its first print run, slotting in at number 744 on Amazon's list, ahead of Dan Brown’s The Da Vinci Code (2,910) and JK Rowling's Harry Potter and the Order of the Phoenix (2,406).

What Every Man Thinks About Apart From Sex, rather unsurprisingly, took just nine days to complete, from conception to publication.