"Code: The Hidden Language of Computer Hardware and Software" is a comprehensive textbook by Charles Petzold, focusing on the programming languages, general programming concepts, software development, and engineering. Published by Pearson Education in 2022, this trade paperback covers essential topics in the field of computers and mathematics, making it a valuable resource for both students and professionals looking to deepen their understanding of computer hardware and software. Written in English, this book explores the intricate world of programming in a clear and informative manner, catering to a wide range of readers interested in the subject matter.