This handy guide to perspective drawing provides important information on such subjects as diminution, foreshortening, convergence, shade and shadow, and other visual principles of perspective drawing. Accompanying a concise and thoughtfully written text are more than 150 simply drawn illustrations that depict a sense of space and depth, demonstrate vanishing points and eye level, and explain such concepts as appearance versus reality, perspective distortion, and determining heights and widths. Unabridged republication of the edition published by Tudor Publishing Company, New York, 1964.

First published in 2006. Clear, practical and comprehensive, this mechanical estimating manual provides an indispensable resource for contractors, estimators, owners and anyone involved with estimating mechanical costs on construction projects, including a wealth of labor and price data, formulas, charts and graphs. Covering timeproven methodologies and procedures, it offers the user a full range of readytouse forms, detailed estimating guidelines, and numerous completed examples. You'll learn from leading experts how to produce complete and accurate sheet metal, piping and plumbing estimates both quickly and easily. The manual will also be of value to supervisors, mechanics, builders, general contractors, engineers and architects for use in planning and scheduling work, budget estimating, cost control, cost accounting, checking change orders and various other aspects of mechanical estimating.