These multi-volume sets are in the library's Research Commons collection on the first floor.
The library has extensive online resources. Below are a few sources to check for background information on plays, playwrights, etc., and bibliographies for further exploration.
Films on Demand is a streaming video platform with educational programs from Films Media Group, including many films about plays, drama, and theatre.
Doollee.com website guide covers modern playwrights, characters, literary agents, publishers and thousands of theatre plays which have been written, adopted or translated into English since 1956. -- website