The NielsenIQ and GfK Entertainment international book market report, released at the London Book Fair on March 16, offers the clearest annual snapshot of where the global book trade is growing and where it is contracting. The headline figure — revenue growth in 12 of 19 territories — masks a structural divergence that has significant implications for where the major publishers will focus their investment over the next decade.

The Global South is driving the industry's growth story. India's 20.7% revenue increase is the standout figure, but it sits within a broader pattern of double-digit or high single-digit growth across Latin America: Brazil at +11.2%, Mexico at +7.0%. These are not emerging markets in the traditional sense — they are rapidly maturing ones, with growing middle classes, expanding retail infrastructure, and, critically, a young demographic that is reading. The contrast with Western Europe is stark. Italy fell 2.1%, France 1.5%, and the United Kingdom 0.5%. These are markets where the reading population is ageing, where competition for leisure time is most intense, and where price sensitivity is highest. The UK average book price rose to £9.52 in 2025 — a 2% increase — but unit sales are under pressure, suggesting that price inflation is masking volume weakness.

Fiction's dominance as the growth engine is now a structural feature rather than a cyclical one. Freida McFadden's crime titles appeared in the top 20 bestsellers of nine territories; Dan Brown's The Secret of Secrets ranked in the top three in five countries. The data confirms what booksellers have observed anecdotally: readers in growth markets are buying genre fiction, driven by social media discovery, BookTok, and streaming adaptations. Non-fiction, by contrast, grew in only seven territories — a troubling signal for publishers whose backlists and prestige imprints are weighted toward narrative non-fiction, biography, and current affairs.

For publishers with global ambitions, the report is an instruction manual. The growth is in the south and east; the product is fiction; the discovery channel is social media. The question is whether the major houses, still largely organised around their US and UK headquarters, can move fast enough to capture it.