Bibliophiles and library enthusiasts should enjoy this tribute on Tor.com:
A Long Overdue Nod to SciFi and Fantasy’s Best Librarians by STUBBY THE ROCKET
Many of my favorites made this list, though I would add Master Lorren from "The Kingkiller Chronicles" by Patrick Rothfuss.
Mrs. Fletcher (aka Shasta Smedry) and all of the librarian's from Brandon Sanderson's Alcatraz versus the Evil Librarians series. And Ivy from the Dresden Files.