User Permissions
Description
Other users on your site can be assigned permissions via roles. To do this, you first need to create a role by navigating to people --> permissions --> role. A common role is "Content editor" or "Member". Next, you will assign permissions to that role, to tell Drupal what that role can and can't do on the site. Finally, you will grant certain users on your site your new role, which will mean that when those users are logged in, Drupal will let them do the actions you gave that role permission to do.
You can also assign permissions for the special built-in roles of "anonymous user" or "guest" (a user who is not logged in) and "authenticated user" (a user who is logged in, with no special role assignments). Drupal permissions are quite flexible—you are allowed to assign permission for any task to any role, depending on the needs of your site.
There are some exceptions: As example, if you want a guest allowed to see content on the front page, you can't prevent them from seeing any content of the same content type on any page, if they know the correct url (from viewing over your shoulder ...) without any login.