Stephen King. Dan Brown. Robert Ludlum.
Both Jonathan and Faye Kellerman, James Patterson, Patricia Cornwell, James Michener and a few others that I can't think of at the moment.
My all time favorite author was Irving Wallace, but I've read all his books and there won't be any more.
I read for pleasure and relaxation.
Laurie King's Mary Russell/Sherlock Holmes series, which regrettably seems to have come to an end.
Dorothy Sayers. Josephine Tey. Phoebe Atwood Taylor. Charlotte MacLeod. Georgette Heyer. Anne McCaffrey.