I started with Clojure about six months ago now and currently use it for all personal projects and day-to-day as part of my course of studies.

I started with Joy of Clojure and found it hard to wrap my head around - it's commonly recommended you read it as your second book on Clojure, and it quickly became apparent to me why :) I jumped over to Clojure Programming and things immediately started to click in a way they'd not with JoC; after a couple thousand more lines of code and a few tens of 4clojure problems, I reread fogus, et al's work and had a much better time of it.

My advice is to get Clojure Programming (http://www.clojurebook.com). Good luck and have fun.

Joy of Clojure is worth revisiting after you've gained enough experience to be confident in writing Clojure code.