https://www.openculture.com/free_textbooks - none of the free textbooks that i tried worked? i picked a few from the CompSci category

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mym1990 2 days ago | parent [-]

When you say they didn't work, what does that mean? Opened 10-20 and they all opened as a PDF or a webpage(albeit some don't have HTTPS certificates).

	▲	mparnisari a day ago \| parent [-]
		I got 404s on some, and then one I recall was a 1-page PDF that had links to buy off amazon >_<