This training book will quickly and clearly provide the fundamentals required to master Microsoft Internet Explorer 4 in a mere 163 pages. The first part of the book features three lessons: "Introducing Internet Explorer," "Finding Information on the Web," and "Communicating with Other Internet Users." Part two offers three more advanced lessons: "Customizing Internet Explorer," Other Ways of Communicating," and "Participating in Newsgroups." Each chapter opens with a large visual of a different screen, marks and explains the screen"s primary tools and information displays, and concludes with the lesson itself. One excellent design feature is that key points are marked in the margins, making it easy to browse back through the book in search of specific information.