Covers is really important when I'm buying books by authors I haven't read before. The title and cover is the first thing I notice, and if I see one I really like I almost always pick it up and read the back blurb. Some of the covers I really like: Taken by Sin by Jaci Burton, No Limits by Alison Kent and Aussie Rules by Jill Shalvis.
Historicals is my favorite genre to read. Some of my favorites are: A Rose at Midnight by Anne Stuart, Whitney, My Love by Judith McNaught, The Devil's Waltz by Anne Stuart and In Bed with the Devil by Lorraine Heath,