PRICES MAY VARY. This book was written for those of you just starting in Electronics or for those who want a deeper understanding of how electronic devices work. Electronic devices are everywhere today; they are part of our everyday life, more today than ever (2023). Having a smartphone and a computer have become almost a necessity (it certainly is for me). Though this book will not detail how these devices work (such as smartphones), it will give you a basic understanding of what goes on “under the hood.”