The book discusses all the main predictive techniques, the total number of which reaches 78. The general principles underlying the construction of various forecasting methods are discussed. The originality of the book is due to the presentation of the author's concept of event formulas, according to which every event in a person's life can be described by a formula. This approach allows forecasting with a high degree of reliability. An assessment of the main methods of horoscope rectification is given, and the rectification method of the Hamburg Astrological School, which gives the most accurate results, is described in detail.