I haven't read Halloway's, but I found the O'reilly book much more helpful for learning Clojure than The Joy of Clojure. They're both great, but I'd definitely

I haven't read Halloway's, but I found the O'reilly book much more helpful for learning Clojure than The Joy of Clojure. They're both great, but I'd definitely read the O'Reilly book before Joy.