Paperbacks

I like to buy paperback crime and thriller novels whenever I go to the gift shop at the hospital. I've found some awesome ones like Neuropath by Scott Bakker, Blood Lines by Grace Monroe, The Carnival Master by Craig Russell, Primal Cut by Ed O' Connor and A Prayer For the Dying by Jack Higgins. What other thriller novels should I look out for? I really enjoyed Neuropath and A Prayer For the Dying, both had me on the edge of my seat.