Can you have multiple Libraries?

Can you have multiple Libraries?

I am new to working with sharepoint and I was wondering if having multiple
libraries is possible.
Here is an example of how my sharepoint side links are at the moment.

Here is a picture of how i want it:

I was planning to have a project section for the department in the second
half.
I have looked in the mircosoft Sharepoint 2012 Unleashed. But it only
shows how to create the usual stuff like documents, web parts ect.
Thanks in advance.