Library journal binding refers to the binding of periodicals or other reference materials into a book. Usually with the spine lettered to describe the contents. This binding is usually done in buckram which is the most expensive and strongest of traditional book cloths and rarely used in producing books for the retail market. The binding usually has a minimum of decoration and emphasis is on strength as opposed to decoration . ( As opposed to Legal Library Binding) This binding style has been traditionlly used to keep periodicals in good order over time ,as well as to stop parts being mislayed. For example" A set of National Geographics bound together into regular volumes of 6 months as they are accumulated.