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A central figure in the revival of astrology in the English-speaking world, this prolific writer helped reshape the subject for a modern audience. His books and magazines made astrology far more accessible and left a lasting mark on popular spiritual culture.

by Alfred H. Barley, Alan Leo
Born William Frederick Allan in Westminster on August 7, 1860, he became widely known by the pen name Alan Leo. He was an English astrologer, author, publisher, data collector, and theosophist, and is often described as a key force behind the revival of Western astrology after its long decline.
Leo published extensively and worked to bring astrology to a broader readership through books, magazines, and organized study. He is especially remembered for pushing astrology toward character reading and personal tendencies rather than strict prediction, a shift that strongly influenced how popular astrology developed in the 20th century.
He remained closely connected to Theosophy throughout his life, and that spiritual outlook shaped much of his work. Alan Leo died on August 30, 1917, but his name is still closely tied to the foundations of modern astrology.