Joy Clark talks with David Nolen about ClojureScript. David introduces the language and discusses the direction that the language is heading in. He talks about how the language is compiled to JavaScript and how it takes advantage of the the Google Closure Compiler. They then talk about designing user interfaces and how functional programming relates to UI design. To wrap up, David mentions different libraries and frameworks that can be used and recommends tools which can be used to get started programming with ClojureScript.