Attribution License- You give anyone the permission to use your work, as long as they give you credit for it.
Noncommercial- You give anyone the permission to use your work, but for noncommercial use only (so they can't make a profit off of your work).
No Derivative Works- You give them permission to use your work, but they can only copy it word-for-word. They can't paraphrase your writings, or change it just a little bit so it isn't exactly yours.
