Since JSP 1.1 we can extend the tags with our own defined tags. How to create new tags and put them in a web application is covered by the author. The web is not restricted to a single country, but is world wide. This means we have to take into account internationalization issues. A separate chapter covers this topic and explains how to use the web browser's settings to send back internationalized content.
Security is also important for web application and is the topic of the next chapter.
Different login techniques are explained. The book concludes with an appendix. In the appendix we can find the JSP syntax, JSP API and servlet API reference. This book contains a lot of information and when we have finished the first part of the book we are ready to build web applications. The next parts of the book go deeper into the subjects.