The GWT In Action book, published by Manning Publications Co. LLC in 2013, is a comprehensive guide to programming languages such as Java and JavaScript, specifically focusing on Google Web Toolkit (GWT). Authored by Anna Tokke, Adam Tacy, Jason Essington, and Robert Hanson, this revised edition features 680 pages of valuable content for those interested in web design and search engines. With a stronghold in subjects related to programming languages and web development, this textbook is a must-have for anyone looking to enhance their skills in the world of computers.