What is one good way to understand how a book affects different people?

Attitude

Explanation:

Books affect people in different ways based on the type of book been read by the user.

Most times people exhibit different characters based on what they watched and read and they feel it the right way

Books affect different people in different ways

some people have the same problems as people in a book and so thats why they explain peoples lives to know that your not the only one going through things and some people dont like hearing other people's life story's because it might remind them of someone they cared about who is gone or anything like that.