BookFinder.com has released an annual report ranking the most popular out-of-print books of the year.

An out-of-print book is exactly what it sounds like: a book that is no longer printed by publishers. According to BookFinder.com, 98-99% of books ever published are now out of print.

Topping off the list are three books that continually rank among the most sought-after: "Sex" by Madonna, "Rage" by Stephen King, under his pseudonym Richard Bachman, and "Promise Me Tomorrow" by Nora Roberts. Another Stephen King book, "My Pretty Pony," comes in at number four.

The Madonna book costs just under $300.00 new, and around $75.00 used. The Bachman/King book is often sold as a set of four, and costs a minimum of $77.00 new, but is an affordable $3.95 when bought used. You'd be lucky to snag a copy of Nora Robert's novel for under $50.00 used, and a new copy costs over $200.00.

Some notable books that just missed the top 13 are "The Jerusalem Bible" illustrated by Salvador Dalí, "The Allegory of Love: A Study in Medieval Tradition" by C.S. Lewis and "Ilsa" by Madeleine L'Engle.

The reports may serve a purpose other than entertaining book lovers: After four years on the list, Norman Mailer's "Marilyn Monroe" was reprinted by Taschen.

Check out the top 13 out-of-print books of 2012:

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  • #1. "Sex" by Madonna

  • #2. "Rage" by Stephen King (as Richard Bachman)

  • #3. "Promise Me Tomorrow" by Nora Roberts

  • #4. "My Pretty Pony" by Stephen King

  • #5. Pure, White, and Deadly: The Problem of Sugar" by John Yudkin

  • #6. "Mandingo" by Kyle Onstott

  • #7. "Man in Black" by Johnny Cash

  • #8. "Codex Seraphinianus" by Luigi Serafini

  • #9. "365 Bedtime Stories" by Nan Gilbert

  • #10. "Tudor Roses" by Alice Starmore

  • #11. "Fast Times at Ridgemont High" by Cameron Crowe

  • #12. "A Treasury of Great Recipes" by Mary and Vincent Price

  • #13. "Dark Carnival" by Ray Bradbury