Have you guys seen these already? If not, the following are the covers for Silence by Becca Fitzpatrick, the third book in her Hush, Hush series and If I Die by Rachel Vincent, the fifth book in her Soul Screamers series!
I love these covers because they are consistent with the previous books in their series. Hush, Hush, Crescendo and now Silence are all black and gray with the guy with the wings - I haven't actually read the series yet (though I do own the first two) so I don't actually know who the angel-guy is! Still, the cover is beautiful. All of the Soul Screamers covers show beautiful girls (each a different girl, oddly enough) with flowy dresses trailing around them in different colors. Simple yet...significant.
Expected release dates respectively: October 4, 2011 and September 20, 2011