This book provides people who want to work systemically with a set of practical tools. It is above all a reference book full of specific and helpful information - which is especially important to persons learning the trade or who are in their first year of practice. The authors, experienced in training, consultation, therapy and supervising, take the reader step by step through the various phases of systemic work: observation, understanding, recording of information, clarification, forming hypothesis, defining aims, planning and application.Systemic work is explained in such detail that it can be used immediately. Various examples show how systemic therapy may be applied in different psycho-social fields. Short introductions to existing theories round off the insights into more practical matters. The authors and the methods they describe do not oblige the reader to any one systemic direction, but rather provide important knowhow for all fields of work.