Another book worth considering for those who enjoy Robert Place's book is Paul Huson's "Mystical Origins of the Tarot: From Ancient Roots to Modern Usage." He covers much of the same territory as Place, but he provides more details on the historical and symbological development of the minor suit signs. I was particularly intrigued by Huson's speculations of a possible relationship between the four suit signs and the four cardinal virtues. I was also not aware until I read this book that many card historians believe that the modern suit of diamonds is derived from the suit of batons, not coins, and clubs from coins, not batons.
In addition, Huson's book has a very useful compilation of divinatory interpretations for every card that include interpretations from Etteilla, De Mellet, Court de Gebelin, Eliphas Levi, Paul Christian, Mathers, The Golden Dawn, The Grand Orient, and Waite. Also useful is a summary at the end of the book of prominent historical decks and the development of the different historical deck patterns, such as the Marseille, Lombardy, Milanese, Piedmont, Besancon, Bologna, and Belgium. Detailed reviews of this book can be found here:
http://www.aeclectic.net/tarot/books/mystical-origins-tarot/
Alan
Edited to add: Oops! Gazel beat me to the punch with this recommendation. I hate it when that happens
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