Lateral forces is traditionally one of the most baffling subjects for architectural candidates. This course by Robert Marks, P.E., removes the mystery by providing a clear, practical, and understandable approach to both lateral forces and structural systems. Among the subjects covered in the six lessons of this course are: * Conventional structural systems * Long span structural systems * Trusses * Earthquake design * Wind design The earthquake lesson comprises a comprehensive review of earthquake design, including code requirements, lateral load resisting systems, diaphragms, torsion, regular and irregular structures, and a step-by-step example of earthquake design for a small building. Of particular interest is a lesson describing the architecture and structure of a number of notable historical and modern buildings. The course is supplemented with tables, sketches, formulas, sample calculations, a glossary of structural terms, a bibliography, and an index. A review quiz follows each lesson, and the course is concluded with a simulated examination. Complete explanations of all quiz and examination answers are included. This edition incorporates references to both the 1994 and 1997 editions of the Uniform Building Code.