The contributions of the book examine the "realia" of astrological activity, a domain which has received little attention within in the field of the history of astrology in Medieval and Early Modern times. What can be said about the social and academic background of the astrologers? What kind of techniques and methods did they use and how can their general understanding of astrology be described? On the other hand, what did the clients expect and in which ways did the use astrological counselling for themselves? Addresses of astrological texts can be found in various sectors of the population. Therefore, general conclusions on the position of astrology in society can be drawn from the interconnections between astrologers, astrological practice and the recipients. All articles are in English.--