Care of Astronomical Telescopes and Accessories: A Manual for the Astronomical Observer and Amateur Telescope Maker (The Patrick Moore Practical Astronomy Series)
From the reviews:"Internationally known amateur author Pepin has produced a useful manual for both the beginning and experienced telescope user and/or maker. His descriptions … are so clear that they should be mandatory reading for anyone thinking of purchasing a new or used telescope. … Practical hints for many aspects … are detailed and clear. The book is profusely illustrated with drawings and images. Several appendixes … add to its value. … Summing Up: Highly recommended. General readers; professionals." (M.-K.Hemenway, CHOICE, Vol. 42 (9), May, 2005)