The first part of the book deals with Nielsen methods and introduces the reader to results and examples that are helpful to understand the following parts. The second part focuses on covering spaces and fundamental groups, including covering space proofs of group theoretic results. The third part deals with the theory of hyperbolic groups. The subjects are illustrated and described by prominent examples and an outlook on solved and unsolved problems.
B. Fine, Fairfield University, USA; A. Moldenhauer, StatSoft Europe GmbH; G. Rosenberger, Uni. Hamburg; L. Wienke, Uni. Bremen, Germany.