It purports to be a workshop manual for the entire Vanagon (T25) model range but at least one engine (1.6 TD) is not even mentioned in the book at all. The list of gearboxes is similarly incomplete.
Other information, eg the wiring diagrams, is not as complete as one might expect. Few, if any, of the pictures are of a high quality and there is barely enough text to explain the jobs. Fine if you are a VW mechanic by trade but most of us are not. There is also a massive reliance on specialist VW tools, which the home mechanic is not likely to have. There is little suggestion on how to work round this using standard tools.
Try to avoid buying this book if at all possible.