This document discusses Gatsby.js, a framework for building static websites using React. It defines what a static website is as one with fixed content coded in HTML that displays the same to all visitors. The document highlights benefits of static websites like security, reliability, speed and scalability. It introduces JAMstack as a modern web development approach using client-side JavaScript, APIs and prebuilt markup. Specific benefits of Gatsby mentioned are its use of cutting-edge technologies like GraphQL and React, numerous plugins, blazing fast performance, support for progressive web apps out of the box and great developer experience. It provides instructions on getting started with Gatsby and quickly deploying builds using Surge.