Among the many topics covered in this handy, pocket-sized guide are air and gases, computers, electronics, geology, math, surveying and mapping, and weights and measures. Includes tables, charts, drawings, lists & formulas.

Pocket Ref is an amazing reference containing 544 pages of tables, maps, formulas, constants and conversions. Best of all, it fits in your shirt pocket! (3.2 x 5.4 x 0.7 ) The following chapters are contained in Pocket Ref: -- Air -- Automotive -- Carpentry & Construction -- Chemistry & Physics -- Computers -- Constants-Physical -- Electrical -- Electronics -- General Information -- General Science -- Geology -- Glues, Solvents & Paints -- Hardware -- Math -- Mining & Milling -- Money -- Plumbing & Pipe -- Rope, Cable & Chain -- Steel & Metals -- Surveying & Mapping -- Tools -- Water -- Weights of Materials -- Welding -- 3500 Conversion Factors - Perpetual Calendar - Note Pages with Metric/US Rulers -- Detailed Index New sections included in the second edition -- Dry air Specific Heat & Sound Velocity at Various Temperatures & Pressures -- Wood Beam Strength for 76 species of wood -- Max Floor Joist Spans for 21 wood species, 3 grades & 7 load ratings -- Galvanic Series of Metals in Sea Water -- World Wide Telephone Area Codes & International Access Codes -- North American Top 400 airports with elevation, name, code and area population -- Capacities of Hydraulic Rams from 1 to 60 -- Force Required to Punch 10 different metal types at thicknesses from 1/16 to 1-1/4 -- Friction/Head Loss for 38 types of pipe with flow rates from 0.5 to 5000 gpm -- Perpetual Calendar with holidays for all years from 1858 to 2025