This is a complete cyclopedia of knowledge condensed into one volume for easy reference. It covers a wide range of topics including history, biographies, sciences, and statistics providing simple and effective methods for self-instruction. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

In this wide-ranging analysis, Charles Kostelnick and Michael Hassett demonstrate how visual language in professional communication--text design, data displays, illustrations--is shaped by conventional practices that are invented, codified, and modified by users in visual discourse communities.