A marvelous overview of the history, development and use of one of most significant scientific instruments of all time, which goes in to great detail regarding their methods of construction. The Astrolabe has been the tool of choice for Astronomers, Astrologers, Navigators, Explorers, Surveyors and others for over 2000 years. The author, himself a prolific builder of Astrolabes, provides all the necessary information and explains how to use modern tools to create your own surprisingly accurate and beautiful astrolabe. Reviewed by his peers Morrison's book has been described as "the definitive work" and "likely to be the standard on the subject for years to come".