In my mail today, I got a printed copy of the proof for the book. It was incredibly fun to see the text go from its purely electronic format and the planned cover image
and see it actually become the print copy, lying on my dining room table in 3D:
More details to follow as soon as the link for print-on-demand is live. Particular thanks go out to Lon Mitchell and his company, Orthogonal Publishing, for all of his efforts to get the book from electronic .pdf to this printed form. We have an ISBN, too: 978-0-9898975-3-2.