An apprenticeship program can last from 1 to 2 years. Formal training programs include classroom study, demonstrations, and practical work. Students attend lectures on barber services, the use and care of instruments, sanitation and hygiene, and recognition of certain skin ailments. Instruction also is given in selling and general business practices. There are also advanced courses for experienced barbers in hairstyling, coloring, and the sale and service of hairpieces.
Most schools teach hairstyling of men's as well as women's hair.
After graduating from a training program, students can take the State licensing examination. The examination consists of a written test and, in some cases, a practical test of cosmetology skills. A few States include an oral examination in which the applicant is asked to explain the procedures he or she is following while taking the practical test. In many States, cosmetology training may be credited towards a barbering license, and vice versa. A few States have even combined the two licenses into one hair styling license.