I read about him in a book at school
我上学时在树上看过他的故事。
02
You say a book about a subject or book on a subject.可以用a book about /on表示讲述某个主题的书
I like books about story.
我喜欢体育方面的书。
03
you say a book by someone.可以用a book by 表示某人写的书。
I'm reading a book by John Gray.
我正在读一本约翰·格雷写的书