Project-Based Course: Building Agent Workflows with the A2A Protocol, by Vikram Singh Sankhala, is a comprehensive, hands-on guide designed for developers and software engineers eager to master autonomous agent development using the Agent-to-Agent (A2A) protocol. Addressing the significant barriers of complex concepts and limited practical resources, this book provides a clear roadmap, transforming cutting-edge A2A protocol concepts into actionable, production-ready solutions. Through a series of meticulously crafted projects, readers will progress from understanding the fundamentals of agent interoperability and discovery to building sophisticated, multi-agent systems capable of solving real-world business challenges. The course emphasizes practical application, guiding participants through the creation of an Echo Bot, cross-agent collaboration for task management, integration with third-party services, and robust security implementations. The capstone project challenges readers to design and build a complete multi-agent business workflow, such as e-commerce order processing or incident response, solidifying their skills in modular design, secure deployment, and effective orchestration. By leveraging open-source tooling and community resources, this book empowers professionals to build, integrate, and scale interoperable agent workflows, driving modern digital transformation with robust and maintainable solutions.