The Zettelkasten Method is a description of the standardized note formats used and of the workflow of those notes and source references among the components of the Zettelkasten (Ahrens, 23, 41, 45). The workflow starts with hand-written notes and ends either with permanent notes in slip-box or the reference manager, or with project notes for writing projects based on the contents of the Zettelkasten (Ahrens, 23, 41–45).