Roman Business Sense
The Romans certainly had business sense. The walls of the marketplace were painted with frescos indicating what each stall sold. Remember that Pompeii was an international harbor and that you could probably hear 10 or 15 languages in the marketplace. So having a sheaf of wheat on the wall, or a pig, or an amphora of oil or wine, made it that much easier to do business. Many of the frescos have survived.
Sorry about the quality – we were not permitted to use flash and the frescos are not as bright as they used to be.