Sara Gruver · Sarah Gruber · Serhiy Grabarchuk Jr.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The New Puzzle Classics: Ingenious Twists on Timeless Favorites | 978-1-4027-1742-0 (1-4027-1742-3) | 2005 | |
| The Simple Book of Not-So-Simple Puzzles | 978-1-56881-418-6 (1-56881-418-6) | 2008 | Peter Grabarchuk · Serhiy Grabarchuk Jr. |