Baris Ilhan, C.A., NCGR is one of the leading astrologers in Turkey since 1993. She owns a publishing house and an astrology school: “Ilhan Astrology Institute”. Teaches, writes and lectures regularly. Currently researches a 13th century Islamic astrologer, al-Tusi. A member of NCGR, ISAR, AFA, AFAN, AA, OPA and Advisory Board of NCGR, president of NCGR Turkey chapter. Had written two books: “The Puberty Age of Adults: Planetary Cycles” and “Astrology Lessons”, which is a text book for students.