Generative Gestaltung: Entwerfen. Programmieren. Visualisieren. (German)

A great book on generative design or creative coding. It serves well as introduction to the java-based language/library Processing, with which all examples in the book have been produced.
The book features an interesting mix of different kinds of visualizations including 2D and 3D animations, Agent-based automation, particle systems, image manipulation, color, visualization of text and data.
Its great as a programming introduction (if you are already familiar with basic concepts) to Processing, but visually its also very pleasing. The overall print quality is superb, as well as the design of the book itself.