Acknowledgements

This guide brings together background information on OER in Japan and abroad, as well as practical guidance on how to use the OER Repository. The original guide in Japanese was developed by the following contributors:

Chikako Nagaoka, Masako Furukawa, Sun Yuan, Masaharu Hayashi, Makoto Asaoka, Tomoko Serita, and Kazutsuna Yamaji (National Institute of Informatics); Katsusuke Shigeta (Hokkaido University / Open Education Japan); and Toshiyuki Takeda (Kwansei Gakuin University).

The English translation of the Japanese Gitbook was done with the cooperation of Chikako Nagaoka using ChatGPT 4.0. Doug Strable then reviewed and edited the translation for this edition with the help of ChatGPT 5.3, while also manually checking the operation of the OER Repository and adding further relevant information.