Librarians, educators, parents and readers themselves too often get hung up on a male protagonist as the first point of definition for a 'boy book.' There is too much to gain, too much to appreciate from the perspective of any thoughtful, well-developed character. There are barriers to many readers, but when a plot is accessible to both boys and girls those barriers can be melted away. It might be as simple as encouragement or a recommendation on a book to give it a shot with a male reader in the first place.
Here are a few of the best books that boys might have discounted, ignored or put down out of 'principle'.
The Hunger Games - Suzanne Collins
Uglies - Scott Westerfeld
Skin Hunger - Kathleen Duey