Comment by modalduality

In addition to 4Clojure, I found the Brave Clojure book (https://www.braveclojure.com/) helpful for understanding how to structure programs in a "Clojure-y" way, e.g., to a greater extent than OOP representing data in lists and maps instead of structured classes, or using the "nil" value effectively when chaining functions together, almost like the Maybe monad.