88 books • 5 series
1001 Pieces of Absolutely Useless Advice
Sip & Solve Two-Minute Brainteasers (Sip & Solve(r))
Comic Sections Plus
1234 Wacky, Witty and Wonderful Words
1001 Silly Questions
World's Best Word Puzzles: Word Puzzles to Challenge Your Mind!
Number and Letter Puzzles
Hi Lover
Mathematical Lateral Thinking Puzzles
The First Twenty-Five Years of the Superbrain
Remarkable Lateral Thinking Puzzles
Kick Yourself Puzzles
Auntie Lous Quotes
The All New Cavan Joke Book
Hall of Fame Lateral Thinking Puzzles
Brain Boost
Dublin Wit
Lethal Lateral Thinking Puzzles
Love and Laughter
Irish Signs and Notices
Infuriating Lateral Thinking Puzzles
A Quiet Man Miscellany
Wit - the Final Word
Outside-the-Box Lateral Thinking Puzzles