Adolf Dietrich (1877-1957) is one of the most interesting Swiss artists of the 20th century. The self-taught artist developed a distinctive technique that gives his paintings a unique aura to this day. The core of his work lies in the graphic capture of what he sees: often, small drawings in sketchbooks serve as the foundation for Dietrich's masterful paintings, which the artist would then copy and vary, also using drawing techniques. For the first time, this book highlights the importance of drawing in the work of the "Master Painter of Berlingen." Through examples, it traces the artist's creative process, from the conception of images through drawings to the refinement with a brush in the now-popular masterpieces. Numerous illustrations from sketches are included.