This book introduces the Internet step by step, systematically and comprehensively. By studying this book, readers can surf the Internet, send and receive emails, find various types of information, join discussion groups, create their own Web pages, and so on. This book is divided into six parts and 24 teaching hours. Each teaching hour is equipped with hands-on practice to enable readers to further master the content they have learned. This book is rich in content and practical, and is a good self-study tutorial.