Searching for Oreilly books on Amazon or Chapters will yield some results, though most of what they've produced in the last five years seems to be selling for CAD$70 or more.
GitOps Cookbook: Kubernetes Automation in Practice, released this February, goes for $95. They're still using animals on the covers ... but it's now just photos, not the old style of lithographs. Surprised to see some titles like "Windows XP in a Nutshell" are still in stock at their regular price and not in a bargain bin. "Python in a Nutshell", also released in February, sells for $110.
I have some old nutshell handbooks which I bought in the days when they were bargains compared to the Sybex and other books in the field. I also have a few of those old SSC/LinuxJournal pocket guides. But that was from back when there was nothing called Google to ask for video tutorials or man pages available faster than you could reach for your bookshelf. And there weren't AI-powered chat systems that could churn out usable code and admin scripts on demand.