Frank Longo is a freelance puzzle creator who has had more than 2,000 puzzles published since 1993. He has written many books for Sterling, including Hip Pocket Sudoku, Magnetic Sudoku, Master Ninja Sudoku, Oy Vey! Sudoku, Sudoku to Exercise Your Mind, as well as many crossword books.
Peter Gordon was crossword editor of The New York Sun and is the Executive Editor of Puzzlewright Press for Sterling Publishing. His crosswords have appeared in The New York Times, The Wall Street Journal, USA Today, Los Angeles Times, The Washington Post, Newsday, and numerous puzzle magazines, including Games, where he was an editor for seven years.