Plaster surfaces have not only significant practical value but also high aesthetic appeal. Today, they are often used as part of plastered external thermal insulation; typically, standard solutions provided by manufacturers are utilized as systems. However, the potential of plaster goes far beyond common practices. This publication invites readers to observe craftsmen as they mix and apply plaster, exploring the diverse possibilities that the material offers. Detailed recipes, developed and tested at ETH Zurich, along with an illustrated glossary, provide practical guidance, making the publication a valuable handbook and reference. The contributions have been revised and significantly expanded for this new edition, complemented by insights into current research on digital plastering techniques and two new interviews.