Acknowledgments

I owe thanks to many people who have helped me with successive editions of this book. I have had able research assistance from a number of Lewis & Clark Law School students for each edition of this book. I have also benefitted from the guidance and careful editorial work of several members of the staff of Wolters Kluwer Law & Business. Finally, I am grateful to the many students and professors who have used this book and who have offered comments and suggestions.