The document provides rules and instructions for filing vocabulary by organizing personal names into filing segments, units, and items. It explains that a filing segment is the whole name, which is broken into units of last name, first name, and middle name. These units are then organized into items - individual characters that are alphabetized left to right. More examples are given to demonstrate organizing names into these filing units and items. The document also covers sorting names for alphabetizing, with a rough sort grouping by first letter and fine sort listing in true alphabetical order.