Mapping the digital world, one bit at a time.

Tutorials

Tutorials

How to Clean Messy Geodata in Spreadsheets Before Mapping

Tutorials

How to Clean Messy Geodata in Spreadsheets Before Mapping

A practical walkthrough for tidying messy tables before mapping: stripping duplicates, correcting coordinate formats...

How to Build a Simple Web Map with Leaflet and Open Data

Tutorials

How to Build a Simple Web Map with Leaflet and Open Data

A step-by-step walkthrough for building an interactive web map with Leaflet, using open tiles, markers, popups and...

How to Choose the Right Coordinate Reference System for UK Mapping Projects

Tutorials

How to Choose the Right Coordinate Reference System for UK Mapping Projects

A practical guide to picking between British National Grid, ETRS89 and WGS 84 for UK mapping, covering...