Leiningen is the easiest way to use Clojure. With a focus on project automation and declarative configuration, it gets out of your way and lets you focus on your code. Leiningen and Clojure require Java. OpenJDK version 8 is recommended at this time. If you have Leiningen installed, you can read the tutorial by running lein help tutorial. It does not cover learning the language itself; good Clojure documentation can be found elsewhere. If your preferred package manager offers a recent version...