Rick Riordan — American Author born on June 05, 1964,

Richard Russell "Rick" Riordan, Jr. is an American author known for writing the Percy Jackson & the Olympians series, which is about a twelve-year-old who discovers he is the son of Poseidon. His books have been translated into 37 languages and sold more than 30 million copies. Twentieth Century Fox has adapted the first two books of his Percy Jackson series as part of a series of films. His books have spawned related media, such as graphic novels and short story collections... (wikipedia)

To a degree, the Greek and Roman mythological heroes are just the first superheroes. They appeal to children for much the same reason. These gods and heroes may have powers, but they get angry and they do the wrong thing. They are human too.
I think kids want the same thing from a book that adults want - a fast-paced story, characters worth caring about, humor, surprises, and mystery. A good book always keeps you asking questions, and makes you keep turning pages so you can find out the answers.
I've always liked the idea that writing is a form of travel. And I started my writing career as a mystery novelist for adults.
'Harry Potter' opened so many doors for young adult literature. It really did convince the publishing industry that writing for children was a viable enterprise. And it also convinced a lot of people that kids will read if we give them books that they care about and love.
Every child's taste is different. Don't worry if they're not reading 'War and Peace' at age 12. First, build a good foundation and a positive attitude about reading by letting them pick the stories they enjoy. Make friends with a bookseller or librarian. They are a wealth of information on finding books that kids enjoy.