Definition & Meaning of "Bradel binding"

What is "Bradel binding"?

Bradel binding is a bookbinding style with a hollow back, which means the book's text block is not attached directly to the book's spine. This method allows the book to open more freely and reduces stress on the spine, making it more durable. In Bradel binding, the book's text block is sewn separately and then attached to the cover, often using a separate piece of cloth or paper to create the hollow space. This style is known for its flexibility and longevity, as it helps to protect the book from damage while allowing for easier handling.