An acoustic guitar is a guitar that produces sound acoustically by transmitting the vibration of the strings to the body of the guitar, which then resonates. This vibration causes the air inside the body of the guitar to vibrate, which in turn produces sound. Acoustic guitars are typically made of wood, although other materials such as carbon fiber and plastic are also used.
Acoustic guitars are generally considered to be more traditional than electric guitars, and they are often used in folk, country, and blues music. They are also popular for use in singer-songwriter performances and for recording acoustic tracks in the studio. Acoustic guitars can be played either fingerstyle or with a pick, and they come in a variety of body shapes and sizes.