This is a varied compilation of recipes, about 140 or so total, ranging from meat dishes deserts. It's well organized and the instructions are easy to follow. In addition, there aren't too many "odd-ball" ingredients that are difficult to get.
Crock-pot cooking is generally pretty easy anyway--for most of the recipes you just throw all the ingredients in and come back several hours later to a delicious meal.
I bought the book specifically looking for vegetarian recipes; I didn't notice until later that the same author has an entire book devoted to such. However, there are several vegetarian recipes in this book too.