Unless you're a true artist or an avid painter you probably won't appreciate the innovation behind a curved easel. It creates a completely new perspective with which to create art, a perspective that hasn't been touched ever. It's more than simply a concave easel though, it's an entire artistic contraption, holding the head in place while the artist does their thing.
The easel isn't just curved for the sake of being curved. There's a complexity to the reasoning that would make even the most well read mathematicians blush; the main point is that the curvature gets rid of the distortion that most images experience when drawn on a flat canvas.
The curved easel was made by twin brothers Ryan & Trevor Oakes and will be on display at the MoMath in New York.