If you are a beginner, a hobbyist, or just someone who is interested in learning about different electrical components, you will absolutely enjoy this series. In this book, you will find that it provides the most essential information as to what a particular component is, how it is used, and what to expect from it. It is extremely easy to look up any component within the realm of the volume. Instead of having to go to a computer or potable device each time, I find it much easier to go to this book first. Being that this book is one of many volumes it's very easy to flip through its pages, and if you wish, write notes for yourself inside as well. Upon purchase, you will be amazed at just how much useful information there is for each component in each volume. This is volume 2 of an ongoing series. You don't need to buy all the volumes, but I'm a firm believer in such reference books that if you need something from one volume, you'll definitely need something from the others as well. I purchased volumes 1 & 2 at the same time, I just wish that volume 3 would had been available at the same time, but I can appreciate that there is always information being added too. I highly recommend this book series!