👉 A handybook is a type of book that serves as an essential reference guide for people who are looking to improve their skills or knowledge in a particular area. These books often contain information on specific topics, such as computer programming languages, software development methodologies, or research methodology, and can be used by individuals who have been working on these subjects for some time but need a refresher course. The term "handybook" is commonly used to describe these type of reference books that provide practical advice and