| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| "Countdown" Bumper Puzzle Book 2: Over 2,000 Puzzles from the Ever-popular Channel Four Show | 978-0-233-00108-1 | 2004 | Michael Wylie |
| "Countdown" Bumper Puzzle Book | 978-0-233-05104-8 | 2003 | " |
| "Countdown" Bumper Puzzle Book: Over 1,500 of Countdown's Toughest Word Games, Number Games and Conundrums | 978-0-233-00209-5 | 2007 | " |
| "Countdown" Puzzle Book: 1, 000 More Puzzles from the Ever-popular Channel Four Show: No.4 | 978-0-233-05109-3 | 2003 | " |
| "Countdown" Puzzle Book: No. 1 | 978-0-233-99943-2 | 2001 | " |
| "Countdown" Puzzle Book: No.2 | 978-0-233-05060-7 | 2002 | " |
| "Countdown" Puzzle Book: No. 3 | 978-0-233-05079-9 | 2002 | " |
| Countdown - Spreading The Word | 978-0-233-99976-0 | 2001 | " |
| Countdown: The Ultimate Challenge | 978-0-233-00157-9 | 2005 | " |