The article provides a comprehensive guide on building a Trello-like application using React Hooks and a GraphQL server, emphasizing the importance of practical learning to reinforce understanding of new concepts. The tutorial begins with setting up the backend using a GraphQL server connected to a MongoDB database through Mongoose, detailing the creation of two main entities: Section and Card, along with their type definitions, resolvers, and model schemas. It explains the implementation of GraphQL subscriptions for real-time updates using web sockets and describes the integration of these features into a React frontend. The frontend is built with various libraries like @apollo/react-hooks for GraphQL operations, styled-components for styling, and react-smooth-dnd for drag-and-drop functionality. The article highlights the importance of position calculations for drag-and-drop operations and encourages readers to practice by rebuilding the application independently, providing the complete source code as a reference.