Author
Stephen W. Walker
Reviewers
Dr. Margaret Stockham Turner
José Urdaneta
Robert D. Watkins
Commissioning Editor
Richard Gall
Copy Editors
Tanvi Bhatt
Paul Hindle
Project Coordinator
Venitha Cutinho
Proofreaders
Simran Bhogal
Ameesha Green
Paul Hindle
Graphics
Sheetal Aute
Production Coordinator
Melwyn D'sa
Cover Work
Simon Cardew