© 2026 CHRIS YAO
Original material
Unless otherwise stated, original text and photographs created by Chris Yao are © Chris Yao. Other photographs and third-party material remain subject to their credited creators’ rights.
AI-assisted visual treatments
Some images on KEIKO use digital or AI-assisted visual treatments based on photographs that Chris owns or has permission to publish. Rights in the underlying photographs remain with their respective owners and credited photographers.
Photography and permissions
Documentary photographs of classes, seminars, gatherings, and public events are used where Chris owns the image or has permission to publish it. Rights in photographs credited to another creator remain with that creator.
Third-party and historical material
Quoted text, archival images, museum records, publications, and other third-party material remain subject to their respective rights and terms. Their appearance on KEIKO does not transfer ownership. Notes using such material should include attribution and source information.
Permissions
For reproduction, translation, classroom use beyond ordinary quotation, or other permissions, please contact Chris before reuse.