The only book of its kind in America that has an illustrated Table of Contents, which includes both pictures and words.The book includes: Practical Math, Plain and Solid Geometry, Basic Applied Algebra, Basic Applied Trig., Trade tricks left out of traditional Math Books. This is the perfect book for all trades personnel, students, and do-it-yourselfers. Also available in hard copy, 406 pages, 6" x 7" (perfect size for your toolbox).