Gregg Kulick is a designer who lives in Brooklyn, and works at publishers Penguin, as well as doing freelance work for many other big publishing houses. I really love his work, very nice style and lots of brilliant typography!
I’ve probably said this before, but I love it when book jacket designers show different rejected cover designs. Always interesting to see the often better, but more risky ideas that have to be ditched or modified. Gregg has some of these covers that never got printed on the book section on his site here. I think the selection I’ve picked above were all final covers though.