What is a group of Folios called?

A group of folios is commonly called a Bind.

Collective nouns for folios do not exist as unique collective terms dedicated exclusively to folios. Folios are individual sheets of paper, parchment, or similar material, usually designed to be bound together in a single book or manuscript. Therefore, the term "folios" is generally used as a plural noun, representing multiple individual sheets. However, certain collective nouns that describe groups of books or manuscripts can indirectly encompass folios. These terms include library, collection, catalogue, archive, or even a shelf or a stack of books, referring to a group of books or documents that potentially consist of folios. Such collective nouns are more broad in nature and versatile, covering a wide range of literary or historical materials. In short, while specific collective nouns specifically related to folios do not exist, one can use generalized collective nouns associated with books and documents to indirectly refer to groups of folios.