Non-fiction
The Stuff of Thought: Language as a Window into Human Nature, by Steven Pinker (2010)

Non-genre
Middlemarch, by George Eliot (2021)

Doctor Who
The Algebra of Ice, by Lloyd Rose (2016) [Seventh Doctor, spinoff novel]

Comics
Agatha Heterodyne and the Guardian Muse, by Phil and Kaja Foglio (2011)
De Sterrensteen, by “Willy Vandersteen” [Peter Van Gucht & Luc Morjaeu] (2014)

A rather short list today, so let’s keep this short too.

The best
Middlemarch is one of my favourite books ever. It is about fifty times better than the other four above, combined. Sometimes the conventional wisdom has a point. (Review; get it here)

Honorable mention
Somehow it’s been rare for Doctor Who books to reach the top spot in my recommendations here, but The Algebra of Ice is a great multi-stranded Seventh Doctor novel which starts with the death of Edgar Allan Poe and then just gets weirder. (Review; get it here, at a price)