OUR INTEREST IN PRODUCING A BOOK COVERING THE broad variety of marine conservation Lagerstätten was kindled through mutual fascination with how the mechanisms that produce the fossil record at times lead to cases of amazing preservation. As this endeavor progressed, it involved many in the broad community who are research specialists on one or more fossil Lagerstätten. These individuals provided the photographs that we have used, and many were involved in reviewing chapters. Production of this book has involved the ongoing encouragement and efforts of Robin Smith, Alessandro Angelini, and Irene Pavitt of Columbia University Press. Encouragement to pursue this project to completion was provided by Dick Bambach, Ed Lugenbeel, and Holly Hodder. Chris Maples and Sally Walker read all the chapters and provided valuable input on improving our presentation. Bill Ormerod has been invaluable in providing suitable copies of photos from disparate sources. To everyone who helped in assembling the many parts that make this book, we offer our heartfelt thanks!