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James Mullaney's book Double and Multiple Stars and How to Observe Them exceeds what anyone has done with this topic before--by a whole qualitative level or two. Mullaney is one of the world's most experienced observers of double stars and "deep-sky objects." His writing is always clear, accurate and enthusiastic and this book is no exception. Double and Multiple Stars, along with Mullaney's other writings on the topic, may end up almost singlehandedly winning over a new generation of observers to the joy of double-star observing. —Fred Schaaf
...I can recommend Double and Multiple Stars and How to Observe Them to those who delight in seeing close points of light and those who can imagine the huge variety of suns they represent.
—Leif J. Robinson, in Sky & Telescope, October 2006