The representative team of Nakhon Pathom Rajabhat University, led by Assistant Professor, Sompon Sukcharoenpong, Director of the Office of Academic Resources and Information Technology, together with staff from the Office of Academic Resources was interested in asking questions on various issues related to the evaluation criteria across all 8 categories for Green Library evaluation, which requires preparation of document and photographs to be evaluated by the committee. The issues include operation methods as specified by the conditions of each category, collection of historical comparative statistics or public relations campaigns to reach out to library users making them change their behaviors and pay more attention to energy saving and environmental conservation. Such matter entails Whether systematic waste sorting before a disposal, using electricity wisely i.e., lighting and air conditioning to reduce greenhouse gases in the office, etc. Staff of both institutions have learned new techniques and methods and the year 2022 marks the milestone as the first year in which Nakhon Pathom Rajabhat University becomes a member of the Green Library Network.