Guitar design involves the shape, materials, and construction methods used to create the instrument. Common types include acoustic guitars, which use a hollow body to amplify sound, and electric guitars, which rely on pickups and amplifiers. The choice of wood, such as mahogany or spruce, affects the guitar's tone and resonance. The design also includes features like the neck shape, fretboard material, and hardware components. Innovations in guitar design have led to various styles, such as solid-body and semi-hollow guitars, catering to different musical genres and player preferences.