Quiz books are the answer to falling non-fiction sales, data shows

2025 was the best year for quiz book sales since records began in 1998; while Bibles also proved popular

If the question is which genre bucked the prevailing trend in publishing to record a remarkable rise in readership last year, the answer is clear: quiz books.

Spending on the titles increased by nearly a quarter in 2025, data from NielsenIQ BookData suggests. It was the best year for quiz books since records began in 1998, according to the company, which manages the ISBN and SAN agencies for the UK and Ireland.