# AI training data market expansion > Live situation record from CLSTR: https://clstr.news/situations/ai-training-data-market-expansion > Updated: 2026-09-20T23:53:23.000Z. Sources: 4. Developments: 2. A growing market for data to train artificial intelligence models is emerging, leading to the monetization of diverse archives including historical newspapers, internal corporate communications, and out-of-print books. In one instance, Google reportedly offered $10 million for Spirit Airlines' internal data, including approximately 100 million emails and 500 million Microsoft Teams elements, to enhance its AI products. This trend toward data acquisition is also impacting the physical book market. In Japan, used bookstores have reported a surge in large-scale orders for niche subjects like philosophy and medicine, with many shipments directed to a single logistics center in Okayama Prefecture. Reports indicate that a major Japanese publishing distributor has exported over 50 tons of books to the United States since last year. These activities have led to suspicions that AI companies are acquiring, scanning, and destroying physical books to digitize content. While Japanese copyright law generally permits the use of works for AI training, the scale of these acquisitions has prompted debate regarding the interests of copyright holders. ## Timeline ### 2026-09-20: Japan used bookstores see surge in orders suspected to be for AI training Japanese used bookstores report a surge in large-scale orders for niche books, suspected to be for AI training data, amid reports of massive Japanese book exports to the US for AI digitization. 2 sources. https://clstr.news/cluster/japan-used-bookstores-see-surge-in-orders-suspected-to-be-for-ai-training ### 2026-08-29: AI training demand drives new market for data and archives AI development is creating a high-value market for training data, including corporate archives and books, while chatbots and new digital formats reshape how audiences consume news. 2 sources. https://clstr.news/cluster/ai-training-demand-drives-new-market-for-data-and-archives --- Cite as: AI training data market expansion. CLSTR, https://clstr.news/situations/ai-training-data-market-expansion