The book is an excellent text for understanding power electronics and power supplies. My background is in analog circuits, microelectronics, RF, and high-voltage, and I found this book very easy to follow and extraordinarily thorough. The device physics in this book is a little thin, but not a concern to me. I would recommend Mohan's book for a more in-depth treatment of device physics or other device physics texts. Having already read half the book, I am currently in the midst of repairing a 14kVDC power supply for a radar system and this book made it very easy to troubleshoot and repair an inoperative power supply. I would highly recommend this book for someone looking to understand the inner-workings of power supplies, or power electronics in general down to its 'nuts and bolts'.