There are many good Clojure books out there, including Stuart Halloway’s/Pragmatic’s Programming Clojure. For the most part, these books are well written and introduce Clojure well.
I’ve been working with Clojure nearly a year, and feel a book that would build on the fundamentals would be most helpful, like a Clojure cookbook.
For example, I’ve been relying on reduce to extract a column subset from each row of a .csv file. I’ve learned I could replace reduce with better lazy alternatives, like map.