When reading Douban, all the books are sorted under the category of "All Hot Tags". What history, literature, psychology, philosophy and so on. You can also click on "All Hot Tags" and directly enter them yourself: such as local culture, anecdotes and so on.
Each book has an introduction, a chapter catalogue and a large number of registered netizens to score, comment, extract and feel after reading.
I have been picking books in Douban, or if I want to buy books, I will check them on Douban first.