 We based the fourth series of Engineer Guy videos on our new book, Eight Amazing Engineering Stories. The Engineer Guy team and I designed it for viewers who wanted to know more about the subjects we cover in the series. I'll tell you exactly what's in that series and in the book in just a moment, but first let me tell you about the formats the book is available in. It's available as a paperback, hardcover, and on all major e-book platforms. The book has 70 fantastic line drawings that help make all the concepts clear. For example, here's one of my favorites. It's a car battery. Now keep that drawing in mind because I want to show you something. It looks great in this paperbound edition, but we've made sure it looks excellent in a low-res e-book. This is easy to do on high-resolution devices like the iPad and the Kindle and the Fire and the Nook, but took some work on an e-ink display. But look here, you see the same drawing on Kindle. We wanted the reader of the paperbound and the e-book version to have the same experience, to have access to the same knowledge. And so we made sure that every drawing works as well on this low-res Kindle screen as it does in the paperbound book. In fact, let me show it to you on my Android. I don't know if this is the ideal way to read the book, but still you can understand the drawings and its labels. Now, let me tell you about what's in the book. In eight chapters, we reveal the magnificent engineering behind the CCD of the digital camera, how it traps charge and creates color. Then we look at the accelerometer inside cell phones and how it's carved out of silicon, next atomic clocks and GPS. Then we describe the engineering of an enriching uranium, next batteries with a short section on how to think about entropy, then anodizing aluminum as used on Apple laptops, a short section on waves for understanding how a microwave oven works, then an explanation of light emission to understand how lasers work. You can learn more at the website. We've put there a detailed description. What's inside the book? You can even read sample pages at the website. We enjoyed writing this book and we sincerely hope you enjoy reading it. I'm Bill Hammack, The Engineer Guy.