This book is better than most of the other AHA style books. The historical section is interesting and well detailed and the brewing section is full of excellent advice. Well written throughout, although a bit too much reliance on the works of other authors (the reader must wade through many quotations.
This is a great reference for making good ales, running the gambit of lower-gravity Scottish ales, through the grandest big-sweet ale known commonly as Strong Scotch Ale. It is really well-written, and even if I do not have a batch of Scottish ale cold-conditioning to patiently look forward to, it is enjoyable to read through, with some entertaining history interspersed. This is the best resource of its kind, and Ray Daniels says as much too, in his excellent book "Designing Great Beers."