The handbook is for everyone who likes to learn the basics of electrical and electronic devices. It includes four main chapters to describe the basic details of electrical and electronic components. The chapter deals with the Introduction of electrical and electronic innovations and working, the basics of electronic devices, the Basic Equation for AC and DC supply sources, and the basics of electrical connections and Testing devices. These chapters are very much helpful for beginners of electrical engineering programmers in their career growth. The outcome of the books is user-friendly for young learners.