i am fixing my resume and my advisor told me to make it "accomplish driven" "an action-results format"

here are my jobs and what i did for each of them

library
- shelving and sorting of books and materials
- provide customer service

office
-answering/ transfering calls
- filing
-copying
-running erands
-customer service (answering students questions)

ex: shelving and sorting of books and materials thereby allowing for the library to continue running efficiently?

When your advisor was talking to you regarding "accomplishment driven", that means what sort of things did you do on your jobs? I will give you a couple of good examples.

Ability to establish rapport with customers/clients and was able to maintain an effective relationship with them while helping them with the problems and issues that they needed assistance with.

Ability to multi-task in a very fast paced environment, and was able to keep up with my work with frequent interruptions.

I hope that this helps you.