This is a torrent I’ve been seeding for a while, it’s pretty good.
Torrent description:
A collection of books that pertain to socialist/worker’s-movement theory, history, movements or figures, with a focus on more recent works that aren’t often available on public-domain archives. Not every book is explicitly socialist in outlook; there are a handful of books in here that just relate to important developments in history that might be interesting to a socialist (for example, King Leopold’s Ghost, a study of the horrors of Belgian colonialism in the Congo Free State, or Judith Butler’s Undoing Gender.)
A mixed bag of formats; EPUB and MOBI when possible, PDF otherwise, with some HTML, TXT and DOC mixed in when totally unavoidable.
Alternative link: https://thepiratebay.org/description.php?id=8267035
Torrent hash: cf0b5eed2e8bc5f6a0a49fd6176093648d80515c