Skip Spence was a soldier, a rock star, a folkie, an innovator, an addict, a cult phenomenon and a ward of the state. The cast of characters in his story include some of the biggest stars in music: Janis Joplin, Jimi Hendrix, Neil Young and many more.

His life is the story of the Sixties ? it's the story of San Francisco, the biggest bands in America and rock'n'roll mayhem.

Although Spence spent much of his life battling addiction and mental illness, during his lucid moments he performed in several bands and is best known for his work with Jefferson Airplane and as the co-founder of Moby Grape. Tracks from his cult solo album Oar has been covered by Tom Waits, Beck and Robert Plant.

With family photos, a foreword by Robin Spence, and accounts from his friends, bandmates and family, Weighted Down is the first book to tell his story in full.