[jmcguckin]

Can i get it in pdf form, or at least, can i get a copy of the epub, instead of being helf hostage to a proprietary reading walled garden like Amazon. Does Nook allow you to download the epub file? But, I’d prefer pdf.

[cdegroot]

The Kobo version is a DRM free epub, so you can read it wherever you like. I'm still figuring out how/where to sell a PDF, because I really, really, _really_ do not like epub for technical books. It's ok for novels, at best. Tips welcome.

https://berksoft.ca/gol/genius-of-lisp-chapter-8.pdf has a free chapter.

[linolevan]

Polar.sh's pretty easy to set up! It was originally built with selling download links in mind (for stuff like OSS software).

Not affiliated, just a happy customer.

[cdegroot]

Yup, you can now. berksoft.ca/gol has a link to a (DRM free) PDF version.