743 book writers with a page here, the busiest first, counted by the productions and shows we hold for each.
| Kimberly Belflower Book Writer | 1 shows |
| Kip Williams Book Writer | 1 shows |
| Kit Buchan Book Writer, Lyricist | 1 shows |
| Kristoffer Diaz Book Writer | 1 shows |
| Kyle Jarrow Book Writer | 1 shows |
| L. Arthur Rose Book Writer | 1 shows |
| L. Frank Baum Book Writer, Lyricist | 1 shows |
| Larry J. Henley Book Writer | 1 shows |
| Larry Kirwan Book Writer | 1 shows |
| Larry Shay Book Writer | 1 shows |
| Larry Shields Book Writer | 1 shows |
| Laurence Stallings Book Writer | 1 shows |
| Lawrence D. Cohen Book Writer | 1 shows |
| LeRoy Clemens Book Writer, Lyricist | 1 shows |
| Lee Hall Book Writer, Lyricist | 1 shows |
| Leon René Book Writer | 1 shows |
| Leonard Spigelgass Book Writer | 1 shows |
| Leslye Headland Book Writer | 1 shows |
| Lesser Samuels Book Writer | 1 shows |
| Leueen McGrath Book Writer | 1 shows |
| Levi Holloway Book Writer | 1 shows |
| Lillian Hellman Book Writer | 1 shows |
| Lisa Kron Book Writer, Lyricist | 1 shows |
| Louis Alter Book Writer | 1 shows |
| Louis Armstrong Book Writer | 1 shows |
| Louis Mattioli Book Writer | 1 productions |
| Luigi Illica Book Writer | 1 shows |
| Luis Carl Russell Book Writer | 1 shows |
| Lynn Nottage Book Writer | 1 shows |
| Lynn Root Book Writer | 1 shows |
| Marc Blitzstein Actor, Book Writer, Composer, Lyricist | 1 productions |
| Marco Ramirez Book Writer | 1 shows |
| Margaret Mayo Book Writer | 1 shows |
| Marian Bissell Book Writer | 1 shows |
| Mario Fratti Book Writer | 1 shows |
| Mark Fisher Book Writer | 1 shows |
| Mark Rosenblatt Book Writer | 1 shows |
| Mark Schoenfeld Book Writer, Composer, Lyricist | 1 shows |
| Mark Swan Book Writer, Director | 1 shows |
| Martin Brown Book Writer | 1 shows |
| Martin Sherman Book Writer | 1 shows |
| Matt Brooks Book Writer | 1 shows |
| Matt Gould Book Writer, Composer | 1 shows |
| Matt Stone Book Writer, Composer, Lyricist | 1 shows |
| Matthew Lopez Book Writer | 1 shows |
| Max Hampton Book Writer | 1 shows |
| Max Wolf Friedlich Book Writer | 1 shows |
| Mel Shapiro Book Writer, Director | 1 shows |
| Melville Shavelson Book Writer | 1 shows |
| Melvin Frank Book Writer | 1 shows |
| Michael Kunze Book Writer | 1 shows |
| Michael Palin Book Writer | 1 shows |
| Michael R. Jackson Book Writer, Composer, Lyricist | 1 shows |
| Michael Weller Book Writer | 1 shows |
| Mike O'Malley Book Writer | 1 shows |
| Miss Cooke Book Writer | 1 shows |
| Monty Norman Book Writer, Lyricist | 1 shows |
| Moos Hart Book Writer | 1 shows |
| Nan Knighton Book Writer, Lyricist | 1 shows |
| Natasha Hodgson Actor, Book Writer, Composer, Lyricist | 1 productions |