"SEX" de Madonna, el libro descatalogado más buscado en el mundo durante el 2011.

Top 100 most sought after out-of-print books in 2011
1. Madonna, Sex
2. Nora Roberts, Promise Me Tomorrow
3. Stephen King (as Richard Bachman), Rage
4. Stephen King, My Pretty Pony
5. Ray Garton, In a Dark Place: The Story of a True Haunting
6. Luigi Serafini, Codex Seraphinianus
7. Johnny Cash, Man in Black
8. Norman Mailer, Marilyn: A Biography
9. H. Henry Thomas, Arithmetic Progress Papers
10. Kyle Onstott, Mandingo

Fuente/source: bookfinder.com