The Drama Book Shop has a great inventory for the actor, director, stage manager and/or designer. They offer plays, screenplays, manuals, agents labels - just about everything a budding (or established for that matter) stage/film professional could ask for in a book shop. There is also a performance space in the basement of the building (so don't be shocked when you see fliers advertising a show at this location).
They are more than willing to order a title for you.
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