Heads up to the moderators:

I'm aware of this rule:

Submissions containing substantial instruction in ubiquitous functions (Save, Open, Print, etc.) or basic programming concepts (variables, operators, loops, etc.) will be rejected.

Please take into account that while this tutorial describes concepts which concern variables and primitive datatypes, it describes particular way Clojure treats this concepts and not concepts themselves. The information in the tutorial is definitely not trivial and not self-evident for people not familiar with LISP programming. Thanks.