You can make the following types of content assignments:
Groups can be assigned content by inheriting it due to their membership in their parent group; these assignments are referred to as inherited assignments. They can also be assigned content directly; these assignments are referred to as explicit assignments.
Similarly, individual users can be assigned content by inheriting it due to their membership in a group; these assignments are referred to as inherited assignments. They can also be assigned content directly; these assignments are referred to as individual assignments.
Inherited Assignments
By default, any content assigned to a group is inherited by all users in that group and by any child groups. This enables administrators to assign specific content to a large number of users. Users in multiple groups inherit the assignments of all the groups in which they are a member.
Explicit and Individual Assignments
In the case of Library assignments and Books24x7 assignments, if you assign content to a group or user directly, that assignment overrides all inherited assignments.
In the case of learning plan assignments and enrollments, learners can only remove content that they have assigned to themselves. This content is in the user's Personal Learning tab of the learning plan.