Esri Press is honored to republish C. Dana Tomlin's foundational text, Geographic Information Systems and Cartographic Modeling, originally printed in 1990. The book has been revised and reissued under the title GIS and Cartographic Modeling. It includes updated illustrations and important new material.

In this book, Tomlin introduced map algebra, which he originally developed in the early 1980s and is still used today. Map algebra is a system of mathematical operations and analytical functions, used within a geographic information system (GIS), to combine existing map layers (or themes) in the creation of new ones.

"Cartographic modeling is a game of only several pieces and a few basic rules but unlimited possibilities," writes Tomlin in the book's preface. "It is also a game that generally requires no previous experience in computer programming, advanced mathematics, or even formal cartography. What the game does require, however, is an eye for both spatial and logical structure. These pages are the result of a long-held interest that has always enjoyed much-appreciated support."

Tomlin is a professor of landscape architecture at the University of Pennsylvania (Penn) School of Design and an adjunct professor of GIS at the Yale School of Forestry and Environmental Studies. He is founder and codirector of Penn's Cartographic Modeling Laboratory. Tomlin is a recipient of the Perkins and Lindback awards for distinguished teaching.

Through its Classic series, Esri Press preserves important scholarship in the fields of GIS and cartography by republishing seminal texts that otherwise were no longer in print. Other books in this series include Notes and Comments on the Composition of Terrestrial and Celestial Maps by J. H. Lambert, Semiology of Graphics by Jacques Bertin, and The Look of Maps by Arthur H. Robinson.

GIS and Cartographic Modeling (ISBN: 978-1-58948-309-5, 204 pages, US$45.95) is available at online retailers worldwide, at esri.com/esripress, or by calling 1-800-447-9778. Outside the United States, visit esri.com/esripressorders for complete ordering options, or visit esri.com/distributors to contact your local Esri distributor. Interested retailers can contact Esri Press book distributor Ingram Publisher Services.

# # #

About Esri Press
Esri Press publishes books on GIS, cartography, and related topics. The complete selection of GIS titles from Esri Press can be found on the web at esri.com/esripress.

About Esri
Since 1969, Esri has been giving customers around the world the power to think and plan geographically. The market leader in GIS, Esri software is used in more than 300,000 organizations worldwide including each of the 200 largest cities in the United States, most national governments, more than two-thirds of Fortune 500 companies, and more than 7,000 colleges and universities. Esri applications, running on more than one million desktops and thousands of Web and enterprise servers, provide the backbone for the world's mapping and spatial analysis. Esri is the only vendor that provides complete technical solutions for desktop, mobile, server, and Internet platforms. Visit us at www.esri.com.

Esri, the Esri globe logo, GIS by Esri, ArcGIS, www.esri.com, and @esri.com are trademarks, registered trademarks, or service marks of Esri in the United States, the European Community, or certain other jurisdictions. Other companies and products mentioned herein may be trademarks or registered trademarks of their respective trademark owners.

Press Information:
Jim Baumann, Esri
Tel.: 909-793-2853, extension 1-1807
E-mail (press only): press@esri.com
General Information: info@esri.com