Thanks for asking: it does include the GTFS, but then provides additional discussion over aspects that are not necessarily clear or potentially confusing for ne

Thanks for asking: it does include the GTFS, but then provides additional discussion over aspects that are not necessarily clear or potentially confusing for newcomers. It also covers the fact that many agencies interpret the spec differently and explains things to look out for. The final half of the book shows how to optimize the data from a feed so it will perform more efficiently in an SQL database (for instance, showing how to reduce the number of points in a shape)