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Articles & Books From Jami Dennis
A jargon-free primer on GIS concepts and the essential tech tools Geographic Information Systems (GIS) is the fascinating technology field that's all about understanding and visualizing our world. GIS For Dummies introduces you to the essential skills you'll need if you want to become a geospatial data guru. You'll learn to read, analyze, and interpret maps, and you'll discover how GIS professionals create digital models of landscapes, cities, weather patterns, and beyond.
Cheat Sheet / Updated 05-05-2025
A geographic information system (GIS) is a software for making maps, analyzing data, and more. This cheat sheet tells you about what you can do with GIS, provides a handy guide to raster-based functions, gives you some key ideas to keep in mind about maps (relating to scales, projections, and datums), and the X, Y, and Z of GIS.