An Interpet Guide to Garden Ponds by David Papworth.  

An easy-to-follow, practical guide to constructing, stocking and maintaining a pond in your garden. Well illustrated.  120 pages in an informative and well laid out book to help you get started on the road to a successful pond. 

This is an excellent series of hard cover books, informative and up to date they help you to get the best out of your hobby and avoid potentially costly mistakes.