Modern bookbinding by hand can be seen as two closely allied fields: the creation of new bindings, and the repair of existing bindings. Bookbinders are often active in both fields. Bookbinders can learn the craft through apprenticeship; by attending specialized trade schools such as the Centro del bel Libro, the Camberwell College of Arts, and the North Bennet Street School; by taking classes in the course of university studies, or by a combination of those methods. Some European countries offer a Master Bookbinder certification, though no such certification exists in the United States. MFA programs that specialize in the 'Book Arts,' (hand paper-making, printmaking and bookbinding) are available through colleges and universities such as, Columbia College Chicago, the University of Alabama and the University of the Arts in Philadelphia.
Hand bookbinders create new bindings that run the gamut from historical book structures made with traditional materials to modern structures made with 21st century materials, and from basic cloth-case bindings to valuable full-leather fine bindings. Repairs to existing books also encompass a broad range of techniques, from minimally invasive conservation of a historic book to the full restoration and rebinding of a text.
Though almost any existing book can be repaired to some extent, only books that were originally sewn can be rebound by resewing. Repairs or restorations are often done to emulate the style of the original binding. For new works, some publishers print unbound manuscripts which a binder can collate and bind, but often an existing commercially-bound book is pulled, or taken apart, in order to be given a new binding. Once the textblock of the book has been pulled, it can be rebound in almost any structure; a modern suspense novel, for instance, could be rebound to look like a 16th century manuscript. Bookbinders may bind several copies of the same text, giving each copy a unique appearance.
Hand bookbinders use a variety of specialized hand tools, the most emblematic of which is the bonefolder, a flat, tapered, polished piece of bone used to crease paper and apply pressure[10]. Additional tools common to hand bookbinding include a variety of knives and hammers, as well as brass tools used during finishing.
When creating new work, modern hand binders often work on commission, creating bindings for specific books or collections. Books can be bound in many different materials. Some of the more common materials for covers are leather, decorative paper, and cloth (see also: buckram). Those bindings that are made with exceptionally high craftsmanship, and that are made of particularly high-quality materials (especially full leather bindings), are known as fine or extra bindings.