Punch is a static site generator that aims to delight both designers and developers with its simplicity, intuitiveness, and good basic documentation. It's written in JavaScript with node.js and uses Mustache as its template engine, allowing users to build modern websites using only HTML, CSS, and JavaScript. Punch is not a blog engine but rather a framework that helps users create and maintain websites quickly and easily. With a basic setup and several good examples, Punch can be used for various purposes, including setting up a local site, pushing it to GitHub, and deploying it on Netlify. The guide provides step-by-step instructions on installing Punch, creating a site, running the server, configuring Punch for local folder, pushing to GitHub, connecting with Netlify, and building the site.