There are several main types of guitars, each designed for different styles of music. The most common types include acoustic guitars, which produce sound through their hollow bodies, and electric guitars, which require an amplifier to produce sound. Acoustic guitars are often used in folk and classical music, while electric guitars are popular in rock and jazz genres. Another type is the bass guitar, which has four to six strings and plays lower frequencies, providing rhythm and harmony in a band. Additionally, there are classical guitars, which have nylon strings and a wider neck, making them suitable for classical music. Each type of guitar offers unique features and sound qualities.