Along with plan and elevation, section is one of the essential representational techniques of architectural design; among architects and educators, debates about a project’s section are common and often intense. Until now, however, there has been no framework to describe or evaluate it. Manual of Section fills this void.u003cbru003eu003cbru003ePaul Lewis, Marc Tsurumaki, and David J. Lewis have developed seven categories of section, revealed in structures ranging from simple one-story buildings to complex structures featuring stacked forms, fantastical shapes, internal holes, inclines, sheared planes, nested forms, or combinations thereof. To illustrate these categories, the authors construct sixty-three intricately detailed cross-section perspective drawings of built projectsu0026mdash;many of the most significant structures in international architecture from the last one hundred yearsu0026mdash;based on extensive archival research. u003cemu003eManual of Sectionu003c/emu003e also includes smart and accessible essays on the history and uses of section.