Six Sigma is revolutionizing many industries by reducing variations and errors, while increasing production and profitability. These same concepts are readily being applied in many non-manufacturing fields, including health care which is an industry scrutinized like few others. But how does Six Sigma work? That is the goal of Nan: a Six Sigma Mystery, which helps explain these concepts in an easy to follow format, focusing on their application in the healthcare industry. This engaging and easy-to-use book explains how Six Sigma can be used to improve performance and eliminate costly errors. it is cleverly written as a mystery novel set in a hospital, where the main character, Nan, uses her Six Sigma skills to sleuth and find the cause of a series of recent deaths. While the book is not intended to teach these concepts, readers will see the value and power of using Six Sigma, particularly Poka Yoke, while being entertained and intrigued by the well-written mystery. This book is especially beneficial to healthcare workers who will appreciate first hand the obstacles Nan is struggling to overcome, but is also valuable to anyone who needs to eliminate wasteful errors in their workplace. an ideal book for those just learning Six Sigma or for corporate training, Nan is also a great read for executives looking for more examples of how to implement Six Sigma in their own organizations.Robert Barry is the author of 'Nan: A Six SIGMA Mystery' with ISBN 9780873896122 and ISBN 0873896122.