The Raven Boys by Maggie Stiefvater
I get super excited every time I see this cover, mostly because I love Maggie Stiefvater, but also because, well, look at it! This cover is really unique! You don't see a lot of YA covers where the art was actually painted like this. On top of that, the raven is gorgeous! I love the brush strokes, and I love the red patch. I also love the title; where it is, the font, and the lines behind it. The lines are very curious.