Prentice Hall's exclusive Companion Website offers unique tools and support for every concept in the Quick Access text. Every part of the book references additional online information, including: thousands of self-graded questions for every key concept; pre-and post-tests to gauge comprehension on all grammar/punctuation topics; a complete online text reference keyed to every exercise; tips and exercises for various stages of the writing process; and writing help for different audiences and different academic/professional papers.