This book examines the interrelationship of representational methods and material systems as fundamental drivers of the design process. Identifying four primary categories of representational logics - point, line, surface, mass - each category is illustrated through four precedent projects that deploy iterative material sensibilities. As a collection, this text provides a comprehensive categorization of the architectural design process. Through the comprehensive definition of categorical typologies, it illustrates the collective capability of this conceptual methodology. By unpacking projects through their specific design devices, the collective analysis reveals the impact of material techniques and methods of representation as a generative tool. Broad in scope, it identifies and uniformly analyses some of the most significant projects from the last century, including: UK Pavilion Shanghai - Heatherwick Studio, Shanghai,China Gatehouse - Office dA, Beijing, China Maison Colonial - Jean Prouve, France/Africa de Young Museum - Herzog and de Meuron, California USA Montreal Expo 67 - Buckminster Fuller, Montreal, Canada Jean Marie Tjibou Cultural Center – RPBW, Noumea, Indonesia House III - Peter Eisenman, New York, USA Barcelona Pavilion - Mies van der Rohe, Barcelona, Spain Tel Aviv - Scott Cohen, Tel Aviv, Israel Los Manantiales - Felix Candella, Mexico City, Mexico Yokahama Terminal – FOA, Yokahama, Japan Pantheon, Rome, Italy Tres Grand Bibliotheque - Rem Koolhaas, OMA, Paris, France Brother Claus Field Chapel - Peter Zumthor, Switzerland Embryonic House- Greg Lynn Richly illustrated with consistent, clear and precise line drawings, the book presents a series of iconic precedents through a unique analytical and graphic sensibility.