Preface xxix ACKN OWL ED GM E NT S This book is the result of efforts by many people We are extremely grateful to Alexandra Dyer, Sponsoring Editor; Don Thompson and Claudine O Donnell, Acquisitions Editors; Christina Lee, Developmental Editor; Leanne Rancourt and Cheryl Jackson, Production Editors, and Laura Neves, Copy Editor; and the many others at Pearson Education Canada who have contributed to the completion of this edition We are also grateful to all of the many people who commented on various chapters of the book, made valuable suggestions, and kindly provided us with data We would particularly like to thank the following reviewers whose comments on the manuscript contributed to the development of this edition: Kam Hon Chu, Memorial University Yolina Denchev, Camosun College Michael Ho, University of Toronto Frank Ingold, George Brown College Suzanne Iskander, Humber College Jean-Paul Lam, University of Waterloo Marc Prudhomme, University of Ottawa Duane Rockerbie, University of Lethbridge Shanker Seetharam, Centennial College Lance Shandler, Kwantlen University College Amy Sopinka, University of Victoria Thomas Velk, McGill University Although we have done our best to make this edition as complete and errorfree as possible, as most of you know, perfection is impossible We would greatly appreciate any suggestions for improvement Please send your comments to serletis@ucalgary.ca Frederic S Mishkin Apostolos Serletis 2009