The intended audience of the fault in our stars are teens and young adults. the author's purpose for writing was to express how he felt after losing a friend to cancer as well as letting the world know that people that have illnesses are capable of finding love.
surgery of the chest isan essential resource not only for thoracic surgeons, but also for physicians, residents, and students concerned with diseases of the chest.
running wild is an adventure novel for children.
all the other books are also for kids.