Zuo Chuanhai is an author about whom limited public information is available. Only one work by this author can currently be identified, namely Qingzhou Notes. Judging from its title and its common classification, the book is placed among classic works and carries a distinct regional character, apparently taking the historic city of Qingzhou as its setting or subject. Because no clear records have been found regarding the author's life, nationality, dates of birth and death, or English name, little can be said about his personal experience or creative development. On the basis of the available material, readers' knowledge of Zuo Chuanhai rests mainly on Qingzhou Notes, and his writing style and literary influence await further disclosure before they can be assessed. Overall, Zuo Chuanhai is an author with few works and limited public information, whose value and characteristics should be understood in light of the concrete content of Qingzhou Notes rather than inferred excessively from scant clues.