Start with high-confidence letters & correspondence books, then narrow by subgenre or adjacent topics.
Arthur Rimbaud: Complete Works
Arthur Rimbaud
Letters From an American Farmer and Sketches of Eighteenth-century America
J. Hecor St. John de Crèvecoeur
Letters From a Stoic
Seneca
The Letters of Vincent Van Gogh
Vincent Van Gogh, Ronald de Leeuw
The Letter From Prison
W. Clark Gilpin
The Letters of J.r.r. Tolkien
J.R.R. Tolkien
Letters to Milena
Franz Kafka
I Promise to Be Good
Letters From Tove
Tove Jansson, Boel Westin
The Prison Letters of Fidel Castro
Fidel Castro, Luis Conte Agüero
The Sorrows of Young Werther
Johann Wolfgang Von Goethe
The Letters of John and Abigail Adams
John Adams
Letters to a Young Poet
Rainer Maria Rilke
Love Letters: Vita and Virginia
Vita Sackville-West, Virginia Woolf
Conversations With Rilke
Maurice Betz, Will Stone
On Homo Rodans and Other Writings
Remedios Varo, Margaret Carson
