Looking for Essentials of Geographic Information Systems free? This is the official open textbook by Jonathan Campbell and Michael Shin. It is free to read online and free to download as a PDF. No sign-up, no paywall, and no pirate mirror needed.
First published by the Saylor Foundation, the book is built for introductory GIS courses. It explains GIS ideas in plain language, with real-world examples. Students, teachers, and self-learners use it around the world.
Essentials of Geographic Information Systems: What’s Inside the Free Book
Essentials of Geographic Information Systems covers the full arc of learning GIS. It starts with spatial thinking and ends with managing a real GIS project. Every chapter is short, focused, and written for nonspecialists.
Jonathan E. Campbell is a GIS analyst and biologist. He taught GIS and physical geography at UCLA and Santa Monica College. He holds a PhD in geography from UCLA.
Michael Shin is an associate professor of geography at UCLA. He directs UCLA’s professional certificate program in Geospatial Information Systems and Technology. He teaches introductory, intermediate, and advanced GIS.
The book was published by the Saylor Foundation (Saylor Academy). Its ISBN is 9781453321966. It is shared under a CC BY-NC-SA 3.0 license. That means you can read, print, and share it for non-commercial use, with credit to the authors.
Inside the book: all 10 chapters
The book has 10 chapters, plus a glossary and an index. Here is the full path:
- Chapter 1: Introduction — spatial thinking, geographic concepts, and what GIS is for today
- Chapter 2: Map Anatomy — map types, map scale, coordinate systems, and map projections
- Chapter 3: Data, Information, and Where to Find Them — data vs. information, metadata, and finding data
- Chapter 4: Data Models for GIS — raster data, vector data, satellite imagery, and aerial photography
- Chapter 5: Geospatial Data Management — data acquisition, databases, file formats, and data quality
- Chapter 6: Data Characteristics and Visualization — summaries, queries, and data classification
- Chapter 7: Geospatial Analysis I — Vector Operations — single-layer and multiple-layer analysis
- Chapter 8: Geospatial Analysis II — Raster Data — raster geoprocessing, interpolation, and terrain mapping
- Chapter 9: Cartographic Principles — color, symbology, and cartographic design
- Chapter 10: GIS Project Management — project basics, tools, and techniques
Chapters 7 and 8 are the heart of the book for most learners. They teach the analysis skills that GIS jobs actually test. Chapter 9 is the best short introduction to map design we have seen in a free book.
How to get it free (official sources only)
Every link below is an official, legal, free source. The book is free at the time of publishing — check each source page for the latest edition.
- LibreTexts (read online + free PDF): the current open-education edition, compiled August 2026 — download the free PDF from LibreTexts
- Open Textbook Library: the book’s catalog page with PDF and online formats — Essentials of Geographic Information Systems on the Open Textbook Library
- BCcampus Open Textbook Collection: another official open-textbook listing — Geographic Information System Basics on BCcampus
One honest note: Saylor Academy’s original PDF link no longer works. That is why this post links to LibreTexts and the Open Textbook Library instead. Both host the same book, free and legal.
Who should read this book
This book fits three groups best. First, university students taking their first GIS course. Second, self-learners who want the concepts before touching software. Third, teachers looking for a free textbook to assign.
If you already work in GIS, use it as a refresher. The chapters on data models and raster analysis still hold up. For hands-on software practice, pair it with the QGIS Training Manual and our free GIS software guide.
How to study with it (a simple plan)
Read one chapter per study session. After Chapter 4, open QGIS and load a raster and a vector layer. After Chapter 7, try a buffer and an overlay in QGIS. After Chapter 9, design one clean map and export it.
Want more free reading? Our free GIS books roundup lists six official free books, including this one. A Gentle Introduction to GIS is a shorter companion read. The LearnOSM tutorial teaches OpenStreetMap mapping for free.
Download Essentials of GIS — Free PDF
Frequently Asked Questions
Is Essentials of Geographic Information Systems really free?
Yes. It is an open textbook under a CC BY-NC-SA 3.0 license. You can read it online and download the PDF free from LibreTexts and the Open Textbook Library. No account or payment is needed.
Where can I download the PDF?
Use the button above or the LibreTexts link in this post. The PDF is the full book, including all 10 chapters, the glossary, and the index.
Who wrote Essentials of Geographic Information Systems?
Jonathan E. Campbell and Michael Shin, both of UCLA. Campbell is a GIS analyst and biologist. Shin is an associate professor of geography and directs UCLA’s GIS certificate program.
Is this book good for GIS beginners?
Yes. It was written for introductory GIS courses and for nonspecialists. It explains ideas first and keeps the language plain. No prior GIS knowledge is needed.
Can I use this book with QGIS?
Yes. The concepts apply to any GIS software. Pair the chapters with hands-on practice in QGIS. Our QGIS Training Manual guide shows where to start.
Is there a newer edition?
The original text is from 2011, but the LibreTexts edition was compiled in August 2026. The core concepts — data models, projections, analysis, cartography — have not changed. For current software steps, use the QGIS documentation alongside it.
Essentials of Geographic Information Systems is one of the best free GIS textbooks ever published. It is short, clear, and written by two UCLA geographers who actually teach the subject. Download the free PDF, work through one chapter at a time, and practice each idea in QGIS. That combination — a solid book plus free software — is the fastest free path into GIS.
Related posts: Free GIS Books | QGIS Training Manual Free Download | A Gentle Introduction to GIS Free Download | Free Udemy GIS Courses
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