Colin Harper's "Dazzling Stranger" is much more than a biography of Bert Jansch - it paints a wonderful backdrop of the folk scene in Scotland and London. Bob Dylan's "Chronicles Vol I" is just brilliant - you don't get a definitive outline of any particular sequence of events but it's full of insight about what it was like to be part of the Village crowd in the early 60s. On the traditional side, there are the lovely bits towards the end of Bob Copper's "A Song for Every Season" where he describes what it was like for the family to go and take part in BBC recordings and the like. Ronald Cohen's "Rainbow Quest" is a thorough account of the US folk scene - it's so rich in detail that it sometimes feels overpowering. Then there's Fred Woods' "The British Folk Revival" and Laing, Dallas, Deneslow and Shelton's "The Electric Muse", which are quite succinct accounts of parts of the scene viewed from the 1970s - which means that sometimes they predicted the course of future folk in a way that doesn't fit in hindsight. You could also challenge your assumptions with Mike Brocken's "The British Folk Revival" and the last chapter of Georgina Boyes' "The Imagined Village", both of which will give you new information and wrestle with the underlying politics within the revival. And Sam Richards' "Sonic Harvest" has quite a few absolute gems of chapters on subjects like MacColl's songwriting and what is "tradition". If you want a look at the Scottish scene, there's Hamish Henderson "Alias McAlias" and Ailie Munro's book on the Scottish revival (can't see the book to get the exact title at the moment). I'm sure I've missed loads out, but these ones spring to mind at the moment.