R. S. ยท Richard S.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Crossword Puzzler's Handbook: 1000 People, Places, and Things You Need to Know to Solve Crossword Puzzles! | 978-1-60433-022-9 (1-60433-022-8) | 2008 |
| The Crossword Puzzler's Handbook, Revised Edition: Over 1,500 Words You Need To Know | 978-1-60433-858-4 (1-60433-858-X) | 2019 |