The Mediator Pattern, Uncategorized The Mediator Pattern is FREE February 18, 2016 J.D. Lee Leave a comment You’ve been waiting for it. We all have. And now it’s finally happened: The Mediator Pattern is PERMAFREE on Smashwords. Get your copy now on Smashwords. Click the Download button to open the Smashwords page. Available in Epub and Kindle formats.