The two big threads are 2019 https://news.ycombinator.com/item?id=20594802 2017 ...

		dang on Nov 18, 2020 \| parent \| context \| favorite \| on: Free and liberated e-books, carefully produced for... The two big threads are 2019 https://news.ycombinator.com/item?id=20594802 2017 https://news.ycombinator.com/item?id=14570035