The Truth According to Us by Annie Barrows (Technically, the release date is today, but I'm still counting this one. Otherwise, I would only have 5 books on this list!)
The Other Daughter by Lauren Willig (I love Willig's Pink Carnation series, but I haven't read any of her stand-alone books yet. I'm looking forward to this one.)
Ink and Bone by Rachel Caine (The cover, the title - everything about this book is calling my name!)
The Little Paris Bookshop by Nina George (Paris and bookshop? Enough said.)