We would like to thank all the staff at Express Publishing who have contributed their skills to producing this book. Thanks for their support and patience are due in particular to: Meryl Philips (Editor in Chief), Julie Rich (senior editor); Alex Barton (senior production controller) and the Express Publishing design team; and Emily Newton, Kevin Harris, Daniel Parker, Erica Thompson and Timothy Forster. We would also like to thank those institutions and teachers who piloted the manuscript, and whose comments and feedback were invaluable in the production of the book.
