Recs if you like Julie, or the New Heloise...

Based on the list/book published in 2006, general editor Peter Boxall.

Overlooked, lesser known classics from all over the world and of many genres.

This list also exists as a book club on Fable under the same name.

"a novel written as a series of letters between the fictional characters of a narrative. The term is often extended to cover novels that intersperse other kinds of fictional document with the letters, most commonly diary entries and newspaper clippings, and sometimes considered to include novels composed of documents even if they do not include letters at all. More recently, epistolaries may include electronic documents such as recordings and radio, blog posts, and emails."

This is the compendium of books from the 2012 edition.