This document provides an introduction to Contentful, an API-centric headless content management system (CMS) that focuses on content creation and delivery through RESTful APIs. It discusses key Contentful features like the admin interface for managing content models, content, media and settings, and various APIs for content delivery, previewing, and management. Contentful's client-side tools and SDKs for integrating content in different apps and platforms are also overviewed. Potential use cases for Contentful include building mobile apps, microsites, and product content management systems. The document concludes with pricing tiers and resources for learning more.