A practical reference analyzes Nahuatl place-names and their internal structure, offering rules of composition and a clear method for parsing compounded forms. It explains locative particles, diminutive and possessive markers, regular truncations and euphonic adjustments, and syntactic order in place-name formation. The main body is an alphabetized glossary of names accompanied by literal translations and element-by-element glosses, plus brief notes on special cases; introductory rules and suggested exercises encourage students to master analyses and apply them to reading hieroglyphic and manuscript toponyms.