I have been confronted with myself today, as I weed the juvenile graphic novel collection: I am a biased librarian. I have very little objectivity on the job.
(Explanatory note: weeding is a part of collection maintenance. It entails examining each book in a given section of the library and determining if, whether because of condition, content, or statistics a book should be pulled/withdrawn/discarded, repaired, promoted, or replaced.)
I have noticed it in myself in the past, but today I actually said the words in plain English, "I don't like this book so it's going." And I don't feel one little bit bad about it. I've put The Tale of Despereaux in the 'Keepsies' pile, while Little vampire, and Little vampire does kung fu! went straight on the 'Toss it' pile. Not because I'm particularly fond of the little mouse and his adventures, but because he's not a vampire. Or a vapid-eyed robot. Or cheeky know-it-all child.
It's one of the perks of the job really, to mold the reading preferences of the young people of New Town. I really should have a superhero costume.