I think the most important part of the book is actually in the introduction. Erin goes over the basics about the ingredients used in gluten-free/vegan baking. Many of the ingredients are not my go-to's, so I needed all the help I could get. There is also a section, The Help Desk, that covers frequently asked questions, which is very helpful. For example, the recipes were developed using active dry yeast, so NO, you should not use rapid-rise yeast.
All-in-all, the recipes are easy to follow, and if you are on a gluten-free or vegan diet, I would recommend checking this cookbook out. However, if you aren't, I'm not sure this is the right book for you. Personally, I am not on a gluten-free or vegan diet. It seems like a lot of work to make homemade gluten-free/vegan English muffins when I can easily go buy a pack at the store. I will be giving this book to my sister, since she's been craving carbs and loves to bake!