S. Palmer Related books Gray Whales (Whale Discovery Library) Rourke Pub Group • 1989 Great White Sharks (Shark Discovery Library) Rourke Pub Group • 1989 Hammerhead Sharks (Shark Discovery Library) Rourke Pub Group • 1988 Killer Whales (Whale Discovery Library) Rourke Pub Group • 1988 Nurse Sharks (Shark Discovery Library) Rourke Pub Group • 1988