Start with high-confidence playwriting books, then narrow by subgenre or adjacent topics.
Amadeus
Peter Shaffer
The Playwright's Guidebook
Stuart Spencer
Working on a Song
Anaïs Mitchell
Caligula and Three Other Plays
Albert Camus
Playwrights on Playwriting
Toby Cole
Writing
Robert Emmet Long
Moment Work
Moises Kaufman, Barbara Pitts McAdams
Playwriting for Dummies
Angelo Parra
The Art of Dramatic Writing
Lajos Egri
The American Theatre Wing Presents: the Play That Changed My Life
Ben Hodges
Monsters
Niklas Rådström, Gabriella Berggren
The Convert
Ben Kavanagh
