The greatest shirt pocket reference of all time! An encyclopedia of information for the engineer, manager, scientist, do-it-yourselfer, and maintenance person. New & Expanded 3rd Edition By Thomas J. Glover, Pocket Reference Book with Over 200 More Pages & Thousands Of Updates. For Construction, Lumber, Hardware, Electronics, Welding, Plumbing, Automotive, & Other Technical Treades this Book Includes Tables, Formulas, Conversion Factors & Instructional Material For Any Construction/Maintenance Projects.