This book is probably the most comprehensive (if a little outdated now) guide to the New Wave of British Heavy metal. It's not just boring biographies but a very colourful and amusing tome that goes into great lengths to explain what was going on back in the early eighties. Malc is a very entertaining writer; I love the little anecdotes and one-liners that are spread throughout the book, and the extremely honest tone he puts across in his writing. Be warned though, this isn't an easy book to just pick up and read as you really should have some knowledge of at least a few of the artists mentioned, and as I said earlier it is now slightly outdated; As one who keeps up with the NWOBHM scene, a lot of the bands have actually reformed, or put out newer albums than the ones listed (it only goes up to about 2001) so just bear that in mind if you feel slighty disappointed one of your favourates no longer exist; they just might've got back together since this was writen!
It is an excellent book though, the basic structure of listing every EP, Single and album (although, frustratingly not demos or cassettes, but these are usually mentioned in the descriptive bio's) makes it perfect for collectors to hunt down that elusive album.
Overall, if you have a passion for this kind of music, or you're just getting into it and hanker for more (like I was) then this book is perfect to get you going.