London: A book by authors Adriano Sack and Ingo Niermann will reveal drug problems of celebrities like Sir Elton John, Courtney Love and Whitney Houston.

These artists have struggled with drugs and the book "The Curious World of Drugs and Their Friends" claims to give "fun and fascinating facts" about "every conceivable kind of drug and the people who use them", reports contactmusic.com.

Sack and Niermann write about John admitting to his drug addiction problems saying: "I did not know how to speak to anyone unless I had a nose full of cocaine."

Scheduled for August release, the book also includes stories of celebrities like George Michael, Amy Winehouse and Beach Boys' singer Brian Wilson.