Although it is a huge city, exploring Puebla is easy and most of the places visitors will want to see are within easy walking distance of each other.
In terms of public transportation, a good way for newcomers to establish their bearings is the London style Turibus, a red, double-decker, open top bus which can be hopped on and off at several points around the city (Adults $9, Kids $5).
Normal city buses all have their destinations printed on the front for longer journeys. Taxis are plentiful and should cost $3 – 4 within the city.