The book is a guide for students and teachers to understand the need for, the role of and the methods and techniques of freehand analytical sketching in architecture. The presentation focuses on drawing as an approach to and a phase of architectural design. The conceptual goal of this approach is to use drawing not as illustration or depiction, but exploration. The first part of the book discusses underlying concepts of freehand sketching in design education and practice as a complement to digital technologies. The main component is a series of chapters that constitute a typology of fundamental issues in architecture and urban design; for instance, issues of "facade" are illustrated with sketch diagrams that show how façades can be explored and sketched through a series of specific questions and step-by-step procedures. This book is especially timely in an age in which the false conflict between "traditional vs. digital" gives way to multiple design tools, including sketching. It fosters understanding of the essential human ability to investigate the designed and natural world through freehand drawing.Among the 250 buildings and spaces drawn and analyzed are: Church on the Water, Tadao Ando Santa Maria della Salute, Baldassare Longhena Frederick C. Robie House, Frank Lloyd Wright Boston Institute of Contemporary Art, Diller Scofidio + Renfro Altes Museum, Karl Friedrich Schinkel Philips-Exeter library, Louis Kahn Tate Modern, Herzog & de Meuron Berlin Treptow Crematorium, Axel Schultes Breakfast Room in Sir John Soane"s Museum, John Soane Tugendhat House, Ludwig Mies van der Rohe IKEA diagrams New England Holocaust Memorial, Stanley Saitowitz Berlin Am Kupfergraben 10 Gallery, David Chipperfield Center for Architecture, 1218 Arch Street, Philadelphia Palazzo Chiericati, Andrea Palladio The Netherlands Architecture Institute, Jo Coenen & Co Architec Casa en Bunyola, Francisco Cifuentes ts Casa 6, Ochoalcubo, Marbello, Cecilla Puga Traditional Turkish House Parc de la Villette, Bernard Tschumi Dumbarton Oaks Gardens, Beatrix Farrand McCormick Tribune Campus Center, OMA Spielbudenplatz, Hamburg Place des Vosges, Paris Deanery Garden, Edwin Lutyens Olympic Sculpture Park, Weiss Manfredi Galleria Umberto I, Emanuele Rocco, Oxford University, From Broad Street through Bodleian Library courtyard to Radcliffe Camera