This guide provides a step-by-step tutorial on building a Markdown blog with Next.js 9.4 and deploying it to Netlify. The author assumes the reader has knowledge of React, JavaScript, and CSS. The tutorial covers setting up the project, creating the blog's layout and components, processing Markdown files, listing posts, and customizing the site for deployment on Netlify. The guide includes code examples, explanations, and advice on styling and optimizing the site for performance. By following this tutorial, readers can create a static site with dynamic routing and automatic updates using Next.js and Netlify.