Static site generators can be defined as software applications that generates HTML pages from templates or components. Light-weight markup language such as markdown-formatted text files are used by most static site generators. Static site generators are different from content management systems such as WordPress and Drupal that are powered by databases. Gatsby is a free and open source framework based on React that helps developers build blazing fast websites and apps. Gatsbys rich data plugin ecosystem lets you build sites with the data you want. Gatsby. js is a static PWA (Progressive Web App) generator. You get code and data splitting out-of-the-box. Gatsby loads only the critical HTML, CSS, data, and JavaScript so your site loads as fast as possible. Once loaded, Gatsby prefetches resources for other pages so clicking around the site feels incredibly fast. Gatsby. js is Internet Scale. Forget complicated deploys with databases and servers and their expensive, time-consuming setup costs, maintenance, and scaling fears. Gatsby. js builds your site as static files which can be deployed easily on dozens of services. Gatsby. js builds the fastest possible website. Instead of waiting to generate pages when requested, pre-build pages and lift them into a global cloud of servers ready to be delivered instantly to your users wherever they are. What you will learn includes: Installing GatsbyCreating a Gatsby siteBuilding componentsUsing sub componentsUsing propsLinking between pagesDeploying Gatsby Sites