Thanks to some aptly-suited names, it's pretty easy to decipher what foundation, blush, powder, and eyeshadow brushes are used for, but a fan brush?! Who the hell came up with that one?!

Imagine if you were to take a powder brush and pinch the bristles at the base to flatten them—that's a fan brush. These can come in smaller sizes (like an inch across) with sparse bristles ...