A sitemap is a blueprint of your website that help search engines find, crawl and index all of your website’s content. Sitemaps also tell search engines which pages on your site are most important. This is totally related to SEO. In most of the websites, this sitemap is used and it contains the important pages along with the structure , how the hierarchy of website content/structure is developed. There will be a sitemap.xml which will be used by Search to crawl over the website. For more information on AEM , go through the below syllabus. AEM Author Concepts
AEM Author Tutorial, which will give overview of content authoring. This helps from beginners to professionals