IMHO, hands-down slam-dunk best place on the web to shop for used books
Got everything Moitessier, William A. Robinson, Smeeton, etc. wrote, good quality & inexpensive at Abebooks. Typically has a wider selection than the competition (Amazon), and a more reliable book condition rating scheme (again in my experience). Personally bought about 150 books
over the last 10 years from this source. Still have most of them.
Highly recommend it. Welcome comments / other recommendations. Always looking for a good buy!