Developed at the University of Massachusetts Amherst and class-tested by hundreds of students, Organic OWL is a customizable and flexible web-based homework system and assessment tool. Organic OWL provides students with instant analysis and feedback to homework problems, modeling questions, molecular-structure-building exercises, and animations created specifically for this text. This powerful system maximizes the students' learning experience and, at the same time, reduces faculty workload and facilitates instruction. A fee-based code is required for access to Organic OWL. To learn more, contact your Cengage Learning representative for details.Cengage Learning South-Western Staff is the author of 'Organic Chemistry Owl Access Code Card', published 2006 under ISBN 9780495384441 and ISBN 0495384445.