Acknowledgments I would like to thank all of the hard working editors who helped on this book. I am indebted to the editorial team who offered advice and their encouragement throughout the writing phase. I am grateful for the work Steve Anglin did bringing the initial idea to fruition, Ben Renow-Clarke for his comments and advice, Brent Dubi for answering all of my many questions along the way and his work in ensuring the process went smoothly. Additionally I would like to thank the copy- editors Valerie Greco and Heather Graham for the invaluable feedback they provided. I would like to thank my colleagues at the Scholars' Lab for their support during the writing of this book. In particular, I would like to thank Bethany Nowviskie for not only encouraging me to undertake this project, but ensuring that all of us have research time to pursue our own endeavors. Lastly, I want to thank to my wife Anna, and daughters for putting up with me through this project. Anna's support and encouragement (as well as her smiles and polite nods as I ramble about code) helped me work through many coding issues. Her support, understanding and encouragement helped me immensely in this project.