Websites like 20x200, Asia Art Book Fair, and Japan Photobook Archive have been instrumental in providing access to high-quality scans of Japanese photobooks. These platforms often collaborate with photographers, publishers, and collectors to digitize rare and out-of-print titles, making them available to a global audience. The scans are frequently accompanied by detailed information about the photobook, including its publication history, artist statement, and critical essays.
If you are looking for the original source material to scan yourself or to own, these retailers specialize in Japanese photobooks: japanese photobook scans