Deborah Houlding is a well known and highly respected teacher and practitioner of horary astrology. Her original version of this book came out in 1998 but has been out of circulation for several years. Its welcome return comes in the form of a newly revised and very much updated version of the 1998 edition. The author has included an excellent Appendix on traditional terms, and a Preliminary Guide to the concept of house systems. In depth information is also given on many traditional techniques, which will prove invaluable to the astrology student. An essential source book and almost required reading for any serious astrologer.