In this practical guide to both hand- and computer-drawn design, readers will learn to think in 3D and build complex design ideas that are structurally sound and visually clear. Specially created sketches and computer models show how to develop sketches into finished illustrations. The revised edition of this successful guide contains new material on diagramming, mapping and design strategy. There are also new case studies of leading designers, and cutting-edge coverage of the latest VR drawing programmes, as well as smart device and digital platform interface design.