"The Compendium is issued by Liebherr-Werk Nenzing GmbH. The authors possess a comprehensive knowledge of the market and have an extensive overview of current processes including the latest developments and well as personal experience from international practice. Prof. Dr.-Ing. Markus Schönit is the head of the study programme ""Civil Engineering ? Project Management"" at the Baden-Württemberg Cooperative State University in Mosbach and owner of the engineering office Schönit Engineering. Dipl.-Ing. Peter Quasthoff is project engineer at Liebherr-Werk Nenzing GmbH responsible for the field of deep foundation process technology."