This book is the Astrologer's Guide, Anima Astrologiae, or a guide for astrologers, being the one hundred and forty-six consideration of the famous astrologer, Guido Bonatus, translated from the Latin. Also found within are the choicest aphorisms of the seven segments of Jerom Cardan of Milan, together with a glossary of astrological terms and a catalog of the principle fixed stars, their latitudes, longitudes and nature.