You can read about it here.
“Arboreality is a eulogy for the world as we know it. Rebecca Campbell’s extraordinary, deeply felt book explores the difficulties of the long hard project of survival. There are no heroes or villains here—only people making brave, difficult choices, out of hope and love for their community, for art, knowledge, and beauty. Arboreality imagines things that we haven’t yet considered about what can and will go wrong with our gardens, libraries, and archives if we don’t act now (maybe even if we do). In her masterful and profoundly ethical stories, Campbell asks us what might be saved, what must be saved, and what it will take to do so. ”
Ursula K. Le Guin Prize Selection Panel
Where is Here? 
Congrats!