Bartending school refers to private education businesses that teach individuals the many intricacies of serving customers alcohol from behind a bar.
[3] Modern schools offer training in how to deal with drunk driving, underage drinkers, and aggressive customers.
Many bar schools have their students train using colored water to simulate the various types of alcohol, while others use real liquors.
According to a brief news blurb in Reading Eagle from 1934, "bartender schools are mushrooming in the manor of Tom Thumb golf courses a while back".
In 1955, jobs in service occupations like nursing and bartending surpassed farm work as the third largest category of employment in the economy.