I'm shocked that Java Concurrency in Practice isn't in the list:
http://www.amazon.com/Java-Concurrency-Practice-Brian-Goetz/...
I only know about that book because of Rich's mentions of it.
To be honest, I"m also a little surprised that the Pickaxe book is in the list. Not that Ruby isn't the bees knees; it just didn't strike me as being influential on Clojure.