Welcome to the site! Very excited to see more fans of paper books. One of my all time favorite finds was an antique printing of Mother Goose poems, picked up in a gift shop at the Grand Canyon. Circa 1930's, if I remember correctly.

There's a used bookstore in my area called McKay's, and they keep a free bin outside. I always dig around for hidden gems. A lot of old books with destroyed bindings end up out there.

Given that you're a fan of haikus, have you seen the movie Aisle of Dogs? Fascinating watch for anyone, but there's a haiku that plays a pivotal part in the movie. Good stuff.