Why does Paul Graham keep saying that the book "Hackers & Painters" is available for free on his website? I don't seem to be able to find it and neither do any

Why does Paul Graham keep saying that the book "Hackers & Painters" is available for free on his website? I don't seem to be able to find it and neither do any of the other people who are discussing the issue with him. https://twitter.com/paulg/status/1172557323270840323 https://twitter.com/paulg/status/1172557323270840323 There's this, but that's a very short book if that's it: http://paulgraham.com/hp.html http://paulgraham.com/hp.html