I just bought a book for my 6 years old son about planetes and the solar system. They used a walt disney photo purchased here with "editorial use only". Their book cost $9.99 isn't that commercial use even for a child book, I understand its education but the book isn't free right?
Usage allowance would have been different if you‘re designing the layout for a sports magazine and you‘re using the photo to illustrate a story about football playing techniques. In this situation, the photo was not being used to sell the magazine but rather to enhance the effectiveness of the story