I too, love the library. It makes me very happy to smell the books. My experience first started in High School where I would help teachers out: making copies, grading papers, imputing grades. I then had the fun job of cataloging all the books for the English Department. What I did was I had to put barcodes and English Stickers on the books and laminate them. I then, took the books and put them in the computer so that as each student got a book it was checked out through the library. After this was all done, I organized the books and put them back in each classroom where I made lovely labels for each book. I was the teacher's favorite person because I organized their classroom.
I also volunteered at a local library a couple years ago and had fun. Where I live they have a picnic every year to celebrate the opening of the town and the library always has a quilt show, so I had the responsibility of putting that together: advertising and organizing it. It was good times.