Bob Mulligan is an American astrologer, teacher, author, and founder of The Astrology Company and The Mastery of Astrology correspondence school. A full-time professional astrologer since 1974, his work centers on using astrology as a tool for spiritual development, self-understanding, and practical life guidance. He serves clients and students globally, offering natal, compatibility, relocation, and forecasting consultations as well as written astrological reports through his INDRA software program. Bob is a follower of Avatar Meher Baba and travels to India regularly; the spiritual dimension of astrology is a defining thread throughout his work and teaching. He is a lifetime member of NCGR, ISAR, AFAN, and OPA, and speaks at astrology conferences in the United States, India, and Europe. He writes a free monthly astrological newsletter and authored the first edition of How to Start, Maintain, and Expand an Astrological Practice.