Hi Teo You pay a price for a book. If you buy 3 books at the same time, you can either talk about the total price of the three books, or you can talk about the individual prices. The word fee is normally used to talk about the money you have to pay for a service , not for a physical thing that you buy (such as a book).
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.