Введение в книгу : Layered Design for Ruby on Rails Applications: Discover practical design patterns and modern abstractions for maintainable Rails applications, 2nd Edition is a practical English-language book on software architecture and system design. It focuses on architecture modeling, design decisions, scalability, and communication of complex systems, giving readers a structured way to understand the topic and apply it in study or professional work. Ideal for software architects, senior developers, engineering leads, and advanced students, this book helps readers apply concepts directly through practical workflows, examples, and implementation-oriented guidance. This edition is useful for readers who want updated coverage and a dependable current reference.