You have found Randy the Librarian. There is a room in the library which nobody is allowed to enter.
Maybe if you are nice to Randy and you bring him what he wants, he might give you one of the books out of it.
Items you can gain from this quest:

PetPedia - Maine Coon

PetPedia - Labrador Retriever

PetPedia - Kuvasz

PetPedia - Collie

PetPedia - Bulldog

PetPedia - English Sheepdog

PetPedia - Samoyed

PetPedia - Red Fox

PetPedia - Somali

PetPedia - Holland Lop

PetPedia - Ferret

PetPedia - Cocker Spaniel

Healthpedia - Leporidae

Healthpedia - Dog

Healthpedia - Mustelidae

Healthpedia - Cat

Healthpedia - Wild Canine

PetPedia - Camel

PetPedia - African Elephant

PetPedia - Black Rhinoceros

PetPedia - Serval

PetPedia - Bat-Eared Fox

PetPedia - DikDik

PetPedia - Cheetah

PetPedia - Giraffe

PetPedia - Zebra

PetPedia - African Barb

PetPedia - Aardwolf

PetPedia - African Civet

HealthPedia - Hyaenidae

HealthPedia - Viverridae

HealthPedia - Camelidae

HealthPedia - Giraffidae

HealthPedia - Rhinocerotidae

PetPedia - Spotted Cuscus