A book made from a roll of papyrus or parchment. Scrolls were cheaper to make than codexes and the format was more suited to depict genealogies and to record certain types of documents, like court cases or rents. The word scroll is usually used interchangeably with the word roll, but scholars use the word "roll" to mean books or documents that are read vertically, and reserve the word "scroll" for documents that are read horizontally.