UK report: books whose metadata met the Basic standard 16 weeks before publication sold 250% more

Books that met the Basic metadata standard at least 16 weeks before publication sold 250% more copies than books that did not meet it, or met it only after publication. NielsenIQ BookData reported this in a UK study published 6 November, covering the top 100,000 bestselling printed books of 2025. Metadata is the detail attached to a book's online record.