# GTFS-books

This repository contains the source for the following two books:

* The Definitive Guide to GTFS (2014)
* The Definitive Guide to GTFS-realtime (2015)

These were originally published commercially, but have now been donated to [MobilityData](https://mobilitydata.org/).

Some of the content may be outdated. You are encouraged to contribute any fixes or changes in order to keep it as up-to-date as possible.