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 AndoSanta Maria della Salute, Baldassare LonghenaFrederick C. Robie House, Frank Lloyd WrightBoston Institute of Contemporary Art, Diller Scofidio + RenfroAltes Museum, Karl Friedrich SchinkelPhilips-Exeter library, Louis KahnTate Modern, Herzog & de MeuronBerlin Treptow Crematorium, Axel SchultesBreakfast Room in Sir John Soane's Museum, John SoaneTugendhat House, Ludwig Mies van der RoheIKEA diagramsNew England Holocaust Memorial, Stanley SaitowitzBerlin Am Kupfergraben 10 Gallery, David ChipperfieldCenter for Architecture, 1218 Arch Street, PhiladelphiaPalazzo Chiericati, Andrea PalladioThe Netherlands Architecture Institute, Jo Coenen & Co ArchitecCasa en Bunyola, Francisco Cifuentes tsCasa 6, Ochoalcubo, Marbello, Cecilla PugaTraditional Turkish HouseParc de la Villette, Bernard TschumiDumbarton Oaks Gardens, Beatrix FarrandMcCormick Tribune Campus Center, OMASpielbudenplatz, HamburgPlace des Vosges, ParisDeanery Garden, Edwin LutyensOlympic Sculpture Park, Weiss ManfrediGalleria Umberto I, Emanuele Rocco, Oxford University, From Broad Street throughBodleian Library courtyard to Radcliffe Camera