That’s not a proper book
There’s only one copy of it, unlike a proper print run. Technically all I’ve done is printed one copy of the web page for personal use. But it feels odd. Books are usually mass produced. With a few clicks I could print off as many copies as I want with no additional work. Scaling atoms like you scale software. And it baffles the author when you ask them to sign it.
He’s made a book. Or just printed out an article from the web. Can’t tell which, but would love to give this a go myself.