I read this years ago and remember nothing about it, but it's a start: Remote by Jason Fried and DHH - https://basecamp.com/books/remote
No remote work literature review would be complete without it, but it might potentially be less interesting for a reader who has already been working remotely for 4 years, other than to mostly validate what they probably already know.
"REMOTE shows both employers and employees how they can work together, remotely, from any desk, in any space, in any place, anytime, anywhere."