Thanks for the tip. Just bought it on EBay for $6.86 with free shipping!Go to the local library and borrow some. It's a lot cheaper and you can read the books and if you really like them, then buy that book from a shop or online.
If you really want to buy a book, get "Baensch Aquarium Atlas" (Vol. 1). It covers water chemistry, filters, diseases, plants, and has lots of common freshwater fishes in. The other volumes are primarily fish and don't have the water chemistry, diseases and other good bits in.