Book excerpt: Drawing is an important means to analyse information and develop rigorous arguments both conceptually and visually. Going beyond the how-to drawing manual, this book provides an instrumental approach to drawing, especially computer-generated drawings; it outlines how drawings should be used to convey clear and analytical information in the process of design, as well as the communication and discussion of a project. In depth examples are provided how to communicate effectively. The final section demonstrates how to transform case-studies, directly connecting an analytical approach with the design process.