The Building Neo4j Application with TypeScript course is a new online training platform offered by Neo4j, providing a free, self-paced learning experience for developers. The course focuses on teaching users how to interact with Neo4j using TypeScript, covering topics such as installing dependencies, creating driver instances, executing Cypher statements, reading and writing data, and type checking. With a shorter duration of around two hours, the course features three online-only challenges that can be completed within an online IDE provided by GitPod. The platform aims to teach users how to use Neo4j & TypeScript together, providing a comprehensive learning experience for developers looking to build applications with these technologies.