"Polished Ruby Programming" by Jeremy Evans is a textbook focusing on software development and engineering with Ruby programming. Published by Packt Publishing, this trade paperback is intended for a trade audience and includes 434 pages of content. It offers guidance on building better software with more intuitive, maintainable, scalable, and high-performance Ruby code. The book covers various topics within the subject area of computer science and programming languages, making it a valuable resource for those looking to improve their Ruby coding skills.