# Summary

 - [About](./ch-00-definitive-guide-to-gtfs.md)
 - [Introduction](./ch-01-introduction.md)
 - [Agencies](./ch-02-agencies.md)
 - [Stops](./ch-03-stops.md)
 - [Routes](./ch-04-routes.md)
 - [Trips](./ch-05-trips.md)
 - [Stop Times](./ch-06-stop-times.md)
 - [Calendar](./ch-07-calendar.md)
 - [Fares](./ch-08-fares.md)
 - [Shapes](./ch-09-shapes.md)
 - [Frequencies](./ch-10-frequencies.md)
 - [Stop Transfers](./ch-11-stop-transfers.md)
 - [Feed Information](./ch-12-feed-information.md)
 - [Importing to SQL](./ch-13-importing-to-sql.md)
 - [Switching to Integer IDs](./ch-14-switching-to-integer-ids.md)
 - [Optimizing Shapes](./ch-15-optimizing-shapes.md)
 - [Deleting Unused Data](./ch-16-deleting-unused-data.md)
 - [Searching for Trips](./ch-17-searching-for-trips.md)
 - [Working with Trip Blocks](./ch-18-working-with-trip-blocks.md)
 - [Calculating Fares](./ch-19-calculating-fares.md)
 - [Trip Patterns](./ch-20-trip-patterns.md)
 - [Conclusion](./ch-21-conclusion.md)