The National Diet Library of Japan (NDL) recently announced that the images in its digital image database "NDL Image Bank" are now available for free download and use for commercial purposes. These materials include magazines, books, ukiyo-e woodblock prints, and more, totaling over 900 images. The website also categorizes the images, making it easy to find artists or themes. In the past, it was mainly museums that open-sourced their collections, but now libraries are doing so as well. When using the images, please remember to credit the source as the National Diet Library "NDL Image Bank".