For beginners I recommend building tiny lisp interpreter with this article: http://norvig.com/lispy.html http://norvig.com/lispy.html It's really easy so I cou

For beginners I recommend building tiny lisp interpreter with this article: http://norvig.com/lispy.html http://norvig.com/lispy.html It's really easy so I could build it with coffeescript in just 4 hours while I was a student.