If you are a Java programmer, if you care about concurrency, or if you enjoy working in low-ceremony language such as Ruby or Python, ProgrammingClojure is for you. Clojure is a general-purpose language with direct support for Java, a modern Lisp dialect, and support in both the language and data structures for functional programming. Programming Clojure shows you how to write applications that have the beauty and elegance of a good scripting language, the power and reach of the JVM, and a modern, concurrency-safe functional style. Now you can write beautiful code that runs fast and scales well.