← Back to Blog Topic
GIS Basics
The core concepts behind GIS, explained without jargon. Start here if you're new to spatial data, or want a refresher on how vector, raster, and coordinate systems actually work.
Vector vs raster: the two types of GIS data explained
Every layer in a GIS is either vector or raster. Here's the difference, when each one is the right choice, and how discrete and continuous data fit into it.
What is a map projection? Coordinate systems explained
The Earth is a sphere and your screen is flat. A map projection is the compromise that makes that work, and getting it wrong is the most common source of GIS errors.
What is GIS? A plain-English introduction
GIS connects data to location so you can see patterns, plan projects, and make decisions a spreadsheet can't show you. Here's what it actually is, in plain terms.