The Hidden Life of Trees
Ostensibly a book about forests; actually a book about communication, and about how slowly a shared system reveals itself to anyone patient enough to keep looking.
Wohlleben spent two decades managing a beech forest before he wrote this, and it shows in the pacing. Nothing is hurried. A chapter will spend four pages on the way two roots meet underground, and by the end of it the meeting seems like the most consequential thing in the wood.
The science is lightly worn, sometimes too lightly — a specialist will want more hedging than they get. Read it as a work of sustained attention rather than a textbook and most of that objection loses its force.
What stays is the argument underneath: that a system looks like a collection of individuals only until you learn where to look for the connections. That is a useful idea to carry out of a forest and into almost anything else.