Favorite author(s)?

What author(s) do you enjoy reading the most? List your favorite series by them as well.

For me:
S.M. Stirling (The Emberverse I,II)
Rick Riordan (Percy Jackson & The Olympians/The Heroes of Olympus)
James Patterson (Maximum Ride)
L. Ron Hubbard (Battlefield Earth)
Stephen King (The Dark Tower)

I know I'm forgetting some, but I'll add them when I remember them.