The second to last category is for Kids. Kids need to read books too so let's show you some epic books.
Now these kids books are all freaking amazing! The Forest of Silence is book one in the Deltora Quest and it's a great way to get kids to read more. Instead of just reading a book and then going on with whatever, they have 12+ books that they can keep reading and get into the motion of being a reader. Each book is close to 200 pages with big text so it's easy. Even as an adult I still enjoy remembering the story and thinking about their quest. Percy Jackson is another kids book that is able to be enjoyed by any age and it has a movie coming out! The Spiderwick Chronicles is another short series with illustrations that kids can dive into and enjoy.
The last category, so that I don't spam you guys with books, has to be for teens, also called YA.
Hush, Hush is the first book in a paranormal romance series about fallen angels. The Awakening is the first book in a trilogy about teens who have some sort of powers. It's also part of the first trilogy in a series of other trilogies. Crank is a deep novel written in poetry form, free-verse, about a girl who struggles with the drug. Looking For Alaska is one of the best contemporary novels out there about a guy who finds something a girl he's never seen before.
So if these books aren't good enough then I have no idea what is. Or maybe they're very picky, but I'm sure they'll enjoy at least one of these books! Leave your comments down below with what books you also recommend to readers out there.