豆瓣读书x上海图书馆 is a useful Chrome add-on that allows users to easily search for books in the Shanghai Library directly from the Douban Reading website. This add-on provides a seamless integration between the two platforms, making it convenient for users who want to check the availability of books in the Shanghai Library while browsing book information on Douban Reading.

With 豆瓣读书x上海图书馆, users can customize their preferred libraries and types of collections to focus on. The add-on displays the total inventory and available inventory of the selected library, giving users an idea of the book's availability. By clicking on the provided links, users can directly navigate to the corresponding collection page on the Shanghai Library website for more detailed information.

In addition to book search, the add-on also offers a book recommendation feature. Users can easily recommend books that are not yet included in the library's collection with just one click. They can also view their recommendation history and update the status of their recommended books by clicking on the Douban Reading links.

Overall, 豆瓣读书x上海图书馆 is a handy tool for users who frequently use both Douban Reading and the Shanghai Library. It streamlines the process of searching for books in the library and provides a convenient way to recommend books for inclusion in the collection.