This book's practical, well illustrated, step-by-step explanations of procedures have successfully trained users for 60 years, and continue to appeal to today's visually oriented users. This book offers the best coverage of basic graphics principles and an unmatched set of fully machinable working drawings. For professions that utilize the skills of engineering graphics/technical drawing and drafting/technical sketching.
I have absolutely no rational justification for having spent a great deal of time reading (ok, occasionally skimming) this book. I will almost certainly never use the technical skills involved, which have essentially all been replaced by computer-aided design (CAD) programs. Nonetheless, there is something almost meditative about reading how engineers in generations past would put precise drawings to physical paper. They spent years getting good at the physical skills and techniques necessary for doing so. It is somewhat like seeing a blacksmith or bookbinder at work, using obsolete tools with expertise and precision. I cannot recommend it for anyone else's reading pleasure, but I am happy to have found it.