A review by bluejaybooks
The Galaxy, and the Ground Within by Becky Chambers

A character driven book about aliens where the main draw is the focus on the characters. I really thought the author was trying to write a book without humans on the page until the part where
Spoilera minor human character made an appearance.
Still, this is about the closest to a book without humans as you can get though the aliens are of the sort that you sometimes forget they aren't human until they start talking about their antennae or various other appendages.

Spoiler They also talk about a few things that either presently or historically varied across cultures as though all humans engaged in such behavior. For example, the characters had a lengthy explanation of what cheese was and how it's weird that human adults like it. It's my understanding that--at least historically--some human cultures have also thought of adults eating cheese as weird. Then again, it makes sense that the space faring humans these aliens have come into contact with would eat cheese given its current wide spread consumption.