A method of book construction, distinct from traditional Western binding, secures individual leaves along a central spine, allowing the pages to fan out in a circular fashion. The resulting form resembles a drum, lending itself to the descriptive nomenclature. Consider, for example, a presentation of photographic prints where the viewer experiences each image individually, yet recognizes their relationship within a cohesive whole due to the binding structure.
This binding technique offers several advantages. Its open format allows for full display of each page, unobstructed by a tight gutter. This is particularly beneficial for visual material or texts intended for non-linear reading. Historically, similar binding methods have been employed across various cultures, offering portability and a unique aesthetic appreciated by collectors and artists alike. Its adaptable structure is beneficial for preservation purposes, because each leaf can be replaced without affecting other leaves.
