Are there different types of perfect binding?
Yes. We choose to bind using a method called notch perfect which knocks out small sections on each folded form that allows the glue to penetrate fully. This method is much stronger than if the spines are ground flat yielding a very square spine but you are often left with a book that is more like a scratch pad. Our books do not fall apart. In fact we once had a customer freeze one of our books then shoot it around with a hockey stick to ensure his guide book would be tough enough.
