Frank Longo is a freelance puzzle creator who lives in Hoboken, NJ. He has written many books for Sterling, includingMaster Ninja Sudoku, Beyond Black Belt Sudoku, and Beach Blanket Sudoku, as well as crossword books. He is known for being able to produce sudoku that are diabolically difficult, yet fair, requiring the solver to use advanced techniques not found in typical newspaper and magazine puzzles.
Francis Heaney is a former editor-at-large for Games magazine. His crosswords have appeared in theNew York Times, the Onion, the New York Sun, Games, andNewsday, among other publications. Puzzle books he has written for Sterling includeSudoku in Space, Sip & SolveR Word Searches, Sit & SolveR Quick and Easy Crosswords,Trivial PursuitR Crosswords, and Brain Games for Word Nerds; he is also the author of the humor collectionHoly Tango of Literature (Clerisy Press, Emmis Books).