To my friends at Audimation Services: Carolyn Newman, Jill Davies, and Carol Ursell. It is because of working with you that I developed the art of fraud data analytics.

To Sheck Cho (Executive Editor), who encouraged me to write my books, and to the editors at Wiley, without you I could not have written this book.

To Nicki Hindes, who keeps my office going while I travel the world.

To all those people who have inspired me. Thank you!