The key difference between A and F style mandolins is their body shape and design. An A-style mandolin has a teardrop-shaped body and is relatively simple and unornamented. In contrast, an F-style mandolin has a more complex design, featuring a scroll near the neck joint and 'points' on the lower bout of the body. Both types can be used in the same musical genres, but F-style mandolins are commonly seen as more prestigious, with a higher price tag.