Masha'allah, On Reception
This is a translation of one of the earliest extant texts for horary astrology. Masha'allah ibn Athari (c. 740–815 AD) was an eighth-century Persian Jewish astrologer, astronomer, and mathematician. Includes fully worked out examples. A good text for all students of traditional horary astrology. This is a book is must especially since it challenges basic principles commonly found in later works.