I got this book when I was around ten. I wanted to be a Disney Animator more then life its self growing up. My aunt bought me this book one Christmas.
Through the years I devoured it. Teaching the fundamentals of traditional animation it is a most have for any one interested in the subject.
Though it doesn't deal with the digital age, lots have changed, I still recommend it. The basics have not changed and the wisdom and history of the animation process is something any animator or animation student needs.