This is some 500 pages absolutely packed with information. Its topic is the performing and recording history of the Child Ballads (click on the link if you don't know what that means: there's always someone), so mostly British, American, Canadian. And other British folk songs get a mention here and there.
And it's thorough, thorough. Occasionally it's a little difficult to follow what Thompson is saying, but mostly the info is densely packed and, as far as I can tell, pretty reliable. Near the beginning are accounts of composers who wrote accompaniments to the tunes (Haydn and Beethoven: yes they did), lots about folk song collectors in the field from Cecil Sharp on down, eventually getting to early recordings ("Phil Tanner, the first folk-singing superstar"), more composers (Benj. Britten, Ruth Crawford), gradually into folk singers you've heard of (Jean Ritchie, Judy Collins), a chapter on folk songs that influenced Angela Carter, then through Dylan and Baez to the folkies I listened to in my youth, going through Martin Carthy, the Incredible String Band (yes, they did Child ballads), Pentangle, etc., and finally arriving at Fairport Convention in chapter 37. Steeleye Span gets two chapters, chapter 40 which has a brief overview of their early work, and chapter 41, a fuller discussion of their Golden Age. Thompson says that Steeleye's real innovation was the almost brutally heavy rock arrangements on the likes of "King Henry" and "Alison Gross", at last giving these songs music that was as menacing and vicious as the lyrics. The "haunted and eerie" arrangement of "Long Lankin" also falls in that category. There are a few more references to Steeleye later on, suggesting that "The Prickly Bush" and "Lord Randall" are their two best later songs, ignoring their amazing "Tam Lin".
As the later chapters (there's 48) drift off into newer performers I don't know but who sound tempting from Thompson's descriptions, I looked some of them up but none wound up appealing to me at all. I'm a child of my time, I guess. But I enjoyed reading about the performers I knew and the earlier ones I didn't.
However, the best thing, the very best thing, in this book is the dedication, which reads like this:
To my beloved cousin Jane Thompson Dua, 1971-2022. As a child, she heard me playing "The Wee Wee Man" (Child 38) one day, and completely misunderstood what the song was about. Her interpretation still comes to mind when I hear that ballad.