Five and a half years ago I mentioned that I was writing an intermediate book on Emacs Lisp programming. Unfortunately, the project started – and then stalled for quite some time. There were two main reasons: one was that around the same time I took part in another big writing project, together with two more people, which lasted until late 2020. It is now finished, and I am probably not allowed to talk about it in public yet, but it is going to see the light of day quite soon, at least for some values of “soon” (hopefully still in 2021), and I’m