Scar Tissue is a cracking read. How Mr. Kiedis is still alive is a miracle. The huge amount of drugs, the accidents (bad accidents), the women, the band, the highs and lows are all honestly recounted in this oustanding autobiography.
A.K. gives an insight into the mind and behaviour of an addict with refreshing honesty; there's no preaching here. He recounts his childhood and writes much about the Chili Peppers themselves, detailing their ups and downs (there's a lot of both), their creative processes and the meaning behind some of their songs.
Whether you're a fan of the Chili Peppers or not, this is a great autobiography and I thoroughly recommend it.