Publisher page: https://www.packtpub.com/tcl-tk-8-programming-cookbook/book
Amazon URL: http://www.amazon.com/Tcl-Tk-8-Programming-Cookbook/dp/1849512981/ref=sr_1_1?s=books&ie=UTF8&qid=1297339991&sr=1-1
Listed as expected to publish in Feb, 2011