“You Don’t Know JS: Scope and Closures” is a 96-page trade paperback textbook published by O’Reilly Media, Incorporated in 2014. It covers the subject area of programming languages, specifically focusing on Javascript. The book delves into the concepts of scope and closures, providing in-depth information for programmers looking to enhance their understanding and skills in these areas. With a compact size of 9 inches in length, 6.1 inches in width, and 0.2 inches in height, this textbook is a valuable resource for anyone interested in improving their programming knowledge.