Can I Contact the Author?

Sure: William.Wake@acm.org.

I have a Web site as well: www.xp123.com. Its focus is extreme programming (XP), and refactoring is an important part of that. Refactoring (and this book) has its own corner: www.xp123.com/rwb.

I'm interested in your experience with these exercises, as well as with refactoring in general, so please feel free to write.