| Historical Atlas of Ancient Greece
(New York, 2003) ISBN 0816-052-204 Facts on File 192 Pages, 200 illustrations, including maps, 70,000 word text
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| Historical Atlas of the Napoleonic
Era (New York, 2003) ISBN 01585-748-676 Lyons Press 192 Pages, 200 illustrations including maps, 70,000 word text
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| Historical Atlas of the Renaissance (New York, 2004) ISBN 0-8160-5731-1 Checkmark Books 192 Pages, 200 Illustrations including maps, 70,000 word text (written under the pseudonym Robert Ritchie)
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| Historical Atlas of Exploration (New York, 2000) ISBN 081-60424-89 Facts on File Press 192 Pages, 200 Illustrations, including maps, 70,000 word text
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| Atlas of Medieval Europe (New York, 2000) ISBN 0816044694 Facts on File Press 192 Pages, 200 Illustrations, including maps, 70,000 word text
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| Historical Atlas of the Celtic World
(New York, 2001) ISBN 1904668011 Checkmark Books (New York) 2001 192 Pages, 200 Illustrations, including maps, 70,000 word text
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| Historical Atlas of the Crusades (New York, 2002) ISBN 0816044694 Facts on File Press 192 Pages, 200 Illustrations, including maps, 70,000 word text
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| Historical Atlas of the Viking World (New York, 2002) ISBN 0902-886-038 Thalamus Publishing 192 Pages, 200 Illustrations, including maps, 70,000 word text
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