Nikki Sixx skrev hvor mange bøger i Heroin Diaries-serien?

Nikki Sixx skrev tre bøger i Heroin Diaries-serien:

- The Heroin Diaries:A Year in the Life of a Shattered Rock Star (2007)

- This Is Gonna Hurt:Music, Photography and Life Through the Distorted Lens of Nikki Sixx (2011)

- The First 21:How I Became Nikki Sixx (2013)