Miles Marshall Lewis' book on Sly & the Family Stone's There's a Riot Goin' On, forthcoming in Continuum's 33 1/3 series (to which I've also contributed) looks like a great one, going by the excerpts in the most recent series sampler. The best part of that excerpt is now available for view on the book's MySpace page, complete with an audio clip of "Thank You For Talkin' to Me Africa."