I also recommend "Muffins: Sixty Sweet and Savory Recipes" by Elizabeth Alston.Absolutely the Best Muffins! I've tried most of the recipes in the book, all are fantastic! Pumkpin praline being my favorite. They are easy to make and fast! Most of the recipes use ingredients you ordinarily keep on hand. All the muffins I have brought into work have been a big hit. If you ever need a muffin book buy this one!
This is a book I would definitely recommend to anyone who enjoys baking and eating muffins.