This book is good in the sense of containing a lot of pages and plenty of reproduced factory brochures as well. The format consists of the authors covering the history of Villiers itself, and working through with potted histories of the various motorcycle manufacturers who fitted Villiers engines. This latter material is fairly superficial with the sheer numbers of such manufacturers bulking out the book but making for dreary reading. Minicar and Go-Kart manufacturers are also covered, but for whatever reason not the numerous scooter makers who fitted Villiers; they get barely a mention. Quite a few spelling, grammar and syntax mistakes, particularly towards the end. I get the impression that the book has been thrown together a bit hurriedly.