Where can I collect Zhao's calligraphy works?

Beijing. Zhao's calligraphy works are collected in Beijing. Mr. Zhao participated in the public welfare activity of "Return the Capital to a Blue Sky" and donated five books for exhibition and auction in Beijing, which attracted the attention of relevant parties in Beijing. Zhao, male, 1945, from Hanyang, Hubei, party member, a senior engineer and a national calligrapher.