Electric guitars started appearing in the 1930s. Mainstream electric guitars stores sell well-known brands like Gibson, Fender and Ibanez. Most guitar stores sell six-string models, bass guitars, left handed guitars and electric guitar packages for beginners, which typically include a budget-priced electric guitar, a small practice amplifier, a strap and picks. Guitar World magazine states that since guitar stores require patrons to try out guitars and amplifiers in the premises, some guitar players are nervous about playing in front of the store staff and other patrons. A University Press of Kentucky book on women in music states that customers did not treat a woman who worked at a guitar store like she knew anything about guitars until she would use special guitar terms.^[4]