Even if you know nothing about podcasting, you can produce your own cast within hours of getting your hands on this book. But what surprised me is that even if you're a seasoned podcaster you'll likely learn some good stuff from this book. It's definitely staying on my resource shelf, especially for the great detailed sections on sound production (both the physical gear like mics and the digital processing stuff).
What sets this book apart, though, is the in-depth discussion these authors deliver about show content. I've listened to the first 5 minutes of so many podcasts where the personality behind the mic was clearly interesting, but I didn't have the patience to sit through the loose drivel between entertaining or useful nuggets. This book does a great job guiding the podcaster to devote a little more directed energy to preparing a tight high-quality show. As an avid listener I can tell you this is almost required to get me on to minute 6, and a must to get me to subscribe to your cast.
The book has a nice conversational tone, making it a quick read. It's also laid out so that you can easily jump between sections if you're looking for something in particular, or want to save the detailed tech stuff for later.
My only negative comment about the book is that a few of the screenshots didn't print with enough contrast to make them easily readable. Other than that, I wouldn't change a thing. Great book, and a real bargain at less than $20.