What is the importance of a museum shop in a museum?

If you are talking about an Art Museum then the importance of it is to show you how people can be creative in their own special way! And sometimes it even gives me ideas for pictures and gives me good practice to become a professtional photographer I have been only 4 times and I am only 13!

If you are talking about a History Museum then the importance of it is to tell you the history of America or in a specific place or time! Mostly History is made up of normal people with almost normal lives! They are the people that do little things with a big cause!