I love any kind of mystery or suspense type books. I also just finished the Songs of Ice and Fire series (all books that have been released to date) since I was getting hooked on Game of Thrones.
Some of my favorite authors for light mysteries are :
Heather Webber/Heather Blake
Victoria Laurie (paranormal suspense)
JD, I just saw Gone Girl and had not read the book. Now I am disappointed, but will still read the book. I always find that I enjoy the books much more than the movies.
Thanks to all for the suggestions!