how to make a client login system

Hello!
I am making a site using wordpress as a CMS.
I want my members to login to wordpress and see the documents i want them to.For example,i make a new user named test.So ,i want that whenever he logs in he see’s an page i have made for him or see a message in his dashboard.But when a different person logins,he sees a different account or page containing the documents i want him to see specifically.