Formspree-react is a form handling library built specifically for React projects that provides a React-friendly useForm hook to handle form submits, updates the form state and displays server-side errors. This guide shows how to add a contact form to a Next.js website using Formspree and deploy it to Netlify, requiring a Formspree account and an existing web project built with Next.js. The process involves building a form component, setting up a form endpoint, deploying the project to Netlify, and optionally switching between development and production forms using environment variables.