"Parallel Agile - faster delivery, fewer defects, lower cost" is a professional book that focuses on optimizing software projects. It highlights the challenges associated with accelerating software development processes and offers innovative approaches to solving these issues. The book is based on the insight that simply increasing the number of developers does not necessarily lead to faster results, as outlined in Fred Brooks' famous work "The Mythical Man-Month." Parallel Agile utilizes a domain-specific code generator technology that allows developers to work independently and simultaneously on different scenarios. This results in a significant compression of schedules and enables flexible staffing that enhances efficiency. The book combines proven agile methods with technical prototyping strategies to minimize risks and validate the feasibility of requirements. It is a valuable resource for professionals working at the intersection of technology and IT who are seeking effective methods to improve software development.