252 Acknowledgments The Rocky Nook Team has been invaluable in helping us put together this book. We have appreciated the input and support from Gerhard Rossbach (Publisher, CEO), Matthias Rossmanith (Project Manager), and Joan Dixon (Managing Editor). A spe- cial thanks to Jocelyn Howell (Editorial Assistant) for fielding a countless number of book publishing questions and helping us smooth the project's rough edges. Her quick response and upbeat attitude was always appreciated. In addition we were fortunate to have the help of Jeanne Hansen (Copyeditor), James Johnson (Technical Proofreader), and Petra Strauch (Layout). All writers know that a book starts with a blank page. Filling, in this case, nearly 300 pages with text and photographs takes days, weeks, and months of research, discussion, writing, and rewriting. And although it might seem one is working alone, in reality there are many people who help the writer produce the book. We have appreciated the Rocky Nook team not only for their help, but also for their kindness and professionalism in support of our goal. One of the benefits of I