杭州市图书馆馆长褚树青

吴青桐城图书馆馆长 is likely a title or a role rather than a specific person's name. In Chinese, "吴青桐城" could be a place or an organization, while "图书馆馆长" translates to "library director" or "head librarian."

If you are looking for information about the responsibilities or characteristics of a library director in a Chinese context, I can provide general information. However, if you have a specific question or context related to this title, please provide more details so I can offer a more specific response.