What kind of head-space am I going to be stuck in now?

There exists a quality of a book that I do not have a name for; it is approached by terms like “mode” and “voice” and “the writer’s world-view”, but isn’t quite any of these. I short-hand it as, “What kind of head-space am I going to be stuck in now?” And is it one I that will enjoy being stuck in? We seek out, I think, any favorite writer’s other books, even if they are varied, in the hopes of entering that agreeable head-space again.

Lois Bujold, reviewing Rivers of London by Ben Aaronovitch

I like that ... "head space." Of course, she is precisely right. This is from the review that got me to try the series, way back in 2015.