Hi, John. I'm probably best described as a Clojure groupie at this point. I cook Java for a living, but I just love Lisps, including Clojure. Anyway, it's interesting you chose to use the word Simple in your book title. As others have pointed out, Rich Hickey has sort of colonized that term with his written and spoken discussions of simplicity and accidental/intentional complexity. Did you consider titling the book _Clojure Makes Simple_?
If your book is intended as a gentle introduction for Java programmers, then it probably leads with the good news about interoperability. Which is, calling Java from Clojure is dead simple.
Good point, Rick. Does anyone know what the book is intended to be? I can't find a description of the book - even the page on Amazon is pretty short on the values of the book (not to mention the reviews).