Learn to build a GraphQL server from scratch using Node.js and PostgreSQL in this comprehensive tutorial. Set up a development environment with Babel for ES7 support, Nodemon for auto-reloading, and Sequelize for PostgreSQL database connectivity. Follow step-by-step instructions to create a GraphQL schema, implement user operations, and establish database associations. Explore essential concepts such as GraphQL context, model creation, and server configuration. Gain hands-on experience with Express and Apollo tools while building a robust GraphQL API. Access provided source code and additional resources to enhance your understanding of GraphQL server development.