The books in our library are located on the shelves by a call number, which is based in the Library of Congress system. You can see the whole list of them on their site.
English Literature and Criticism tends to fall in the ' P ' range. Below are some sample call number ranges that could be helpful.
P Philology. Linguistics
PC Romance languages
PD Germanic languages. Scandinavian languages
PE English language
PN Literature (General)
PQ French literature - Italian literature - Spanish literature - Portuguese literature
PR English literature
PS American literature
PT German literature