Oscar Hofman lives in Gorinchem, The Netherlands, and practises all branches of traditional astrology: medical, natal, electional, horary and mundane. He is the founder of the International School of Classical Astrology offering a full training program in the tradition (horary, electional/natal, medical and mundane) in six languages, and is followed by students in more than 30 countries. He travels widely to teach and has clients in many nations around the world. He has written four books on horary practice, medical astrology and fixed stars, published in six languages. He was the first European astrologer to be translated into Chinese. He is also seen as one of the world's leading experts in classical medical astrology and in November 2007 his book on traditional medical astrology - the first publication in this field since 1677 - appeared in The Netherlands. It has been translated into Russian, French, English, Chinese and German.