Browsing Kiwix content is similar to web browsers, so you can easily navigate from a page (which could be a document or an article) to another page. Clicking on the Home icon will take you to your current ZIM file's homepage. For instance, if you run the English Wikipedia ZIM file, you will see the Wikipedia entry as its homepage. If you haven't installed any ZIM file yet, you will see the Help page as the homepage and it means there is no content to display. In that case, you should follow the instructions of this page in order to read the content.