The Writing series includes the many handwritten or typewritten copies of Julius Berstl's plays and novels, particularly later ones, that he had kept. They were all found together in the original boxes, and have been alphabetized. Most of the copies, both typescripts and manuscripts, have handwritten edits added in by Berstl. While very few items in this series are dated, they are predominantly from Berstl's years in America; this places them in the 1950s-1970s. Sometimes there are other items that were originally found with the typescript or manuscript. In those cases, they have been kept together in the same folder. This series also features the typescripts and manuscripts of Berstl's plays, including some of his most famous, like "Dover-Calais" and "Chu the Sinner." These also often have extensive handwritten edits.

Within the Writing series there are also the Short Stories and Anecdotes and well as Other Writings. Within the former, there are a number of shorter forms of writing by Berstl, including notes on different writing projects, radio scripts, film scenarios, articles, and poems. In Other Writings, there are Berstl's German translations of a number of popular plays, as well as other people's writing about Berstl's works, such as reviews and publicity.