Masterly account of the long and colorful history of sundials as well as practical instructions for building your own. Topics include mathematical formulae and calculations relating to sundials, rare and complex dials around the world, a listing of the most popular mottoes, and much more. 104 figures. 51 plates. References.
Here's a sample of other books in this Dover category
Sundials: Their Theory and Construction by Albert Waugh A rigorous appraisal of sundial science includes mathematical treatment and pertinent astronomical background, plus a nontechnical treatment so simple that several of the dials can be built by children. 106 illustrations.
Sundials: Their Construction and Use by R. Newton Mayall, Margaret W. Mayall Clear instructions for constructing a sundial on almost any surface and in virtually any position, with information on materials, Standard Time dials, laying out hour lines, and more. 150 illustrations.