The ISO GPS Ultimate Pocket Guide explains the most common rules, symbols, and concepts in the ISO Geometrical Product Specifications System. Written by standards expert Alex Krulikowski, this valuable on-the-job reference clarifies how to interpret standard-compliant technical drawings that use ISO 1101:2012 and its companion published standards.

More than 15 standards were directly reviewed and more than 30 standards indirectly used in creating the book. One entire section is devoted to a quick comparison of ASME and ISO standards. Author’s comments throughout the text provide insights about concepts and how to apply or interpret tolerancing in a cost-effective manner. Drawing interpretation is simplified because the tolerancing information is in one place, logically arranged, with illustrations of each concept.


Topics include GPS basics, view projection options, linear size, non-size dimensions, datum systems, geometrical and general tolerances, non-rigid workpieces, and workpiece edges. Easily look up information on a subject using indexed pages, cross-references, and reference charts. This one-of-a-kind reference guide eliminates the need to navigate through numerous ISO standards. Use it to learn about ISO standards, as on-the-job resource, or as a valuable teaching aid.

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