The book does cover all kinds of food ~ you can even eat fast food & oreos, as long as the rest of your meals are healthy. I got the book from the library & copied the pages so it didn't cost me very much.
If you work long hours, you can still bring along snacks & take some quick breaks in between. The meals are not huge ~ many fruit & yogurt, or cheese & crackers ~ so they are easy to pack in a bag & eat quickly.
I like the fact that this is not a starvation diet & you can eat like a real person.