2Third expanded edition now includes detailed tutorials for the construction of 33 standard d and innovative circular, linear, and cluster type diagrams.This book is one of three in the Workshop series providing instructional tutorials for the use of Adobe(R) programs: Illustrator(R) + Photoshop(R) + InDesign(R). (Adobe InDesign(R) + Layouts is currently in production wit expected publication in 2020). Diagramming is a primordial form of visual communication. In our increasingly visual world and the advancement of digital visual methods diagramming has become an even more important part of design and communication. This book is unique in that it provides an in-depth study of Adobe Illustrator with a focus on diagramming as a visual design and communication tool for design professionals with over 240 pages of systematic and detailed instructions on mastering the program and step-by-step instructions of creating analytical and conceptual diagrams. This 3rd expanded edition now includes detailed step-by-step instructions of creating 33 various typical and innovative diagrams in three categories: circular, linear, and cluster diagrams. The book also provides insight, based on interviews, into how leading architecture firms - UNStudio, NL Architects, JDS Architects, LOVE Architecture and Urbanism and Behnisch Architekten - use diagramming as design and communication tools. The construction of 31 conceptual diagrams from these firms are explored in step-by-step tutorials. The book is organized in the order that enables users to study Adobe Illustrator systematically and also serve as a logically organized reference resource for specific topics.The book is created for professionals and students in design fields but it can be also valuable for anyone interested in developing knowledge in these programs and exploring their application to digital visualization.