By the use of transparent pages and an ingenious pictorial scheme, a complete story is spread out before the individual as a complete whole. The book is planned so that it can be read from front to back or back to front with the story differing according to which way the book is read. After the subject is built up, it may be reversed from the other angle. Since the page is transparent, the subject matter is carried through the page, presenting the other side of the same material.

Educators, advertisers, science, and industry may use this new tool to unfold an object, lesson, or product in a practical, pictorial manner where the spoken or written word is often misinterpreted or misunderstood. It greatly simplifies the presentation of any object, and produces a vivid mental picture which is easily retained. Sources:

Offset Gravure Corporation, Long Island City, New York S. Theo Jonas, 10 West Jackson Boulevard, Chicago, Illinois

When You're mil/N^lAlO/\/C- Think About '-^LOlLINf; OU£R/

25 Miles an Hour

50 Miles an Hour

'^ ■-'wi..X-'i--''--'-"--t'^^

75 Miles an Hour

Travelers Insurance Co., Hartford, Conn.

Graphic Presentation of the "Turnability" of an Automobile Traveling at Three Rates of Speed.

Chapter 3 TABULATION

ATTRACTIVENESS can be a characteristic of statistical tables. , Adherence to certain simple suggestions will improve their appearance. Designing is an integral part of every table and should be carefully planned. The actual form which any table takes depends upon the data to be presented.

For suggestions relative to setting up tabulation for reproduction, see the Vari-typer in Chapter 44 and the material about typesetting in Chapter 51.