For B, https://pragprog.com/book/vmclojeco/clojure-applied https://pragprog.com/book/vmclojeco/clojure-applied is very nice if you are coming from a traditional

For B, https://pragprog.com/book/vmclojeco/clojure-applied https://pragprog.com/book/vmclojeco/clojure-applied is very nice if you are coming from a traditional Java or OO background, and if you are familiar with design patterns but are wondering how to structure your code in a language style that is unfamiliar.