An "archtop" is a type of guitar characterized by its curved top and back, which gives it a distinctive shape and sound. This design is often associated with jazz music, as it enhances the instrument's resonance and projection. Archtops typically feature f-holes, similar to those found on violins, allowing for better sound quality. These guitars can be either acoustic or electric, with many famous musicians, such as Charlie Christian and Joe Pass, using them in their performances. The construction of an archtop involves intricate craftsmanship, making them popular among both players and collectors.