You can locate a copy at the Internet Archives so you can browse before buying

There should be a law that should any book go out of print, to be digitized and made available online. Publishers shouldn’t dictate which books are allowed to be consumed once they allow it out of print when digital versions cost next to nothing to make available for a nominal price.

That goes for authors owning the copyright, as well.

Homebridge (or Home Assistant) and smarten up your home, then add Node-Red for fancy coding of your devices