Testaments, dowry letters, land sales, cattle leasing, power of attorney letters, and many other types of documents were created by public and royal scribes all over Mexico in the last five centuries. Notarial archives are rich in detail and history. Whenever they are available, they become an essential tool for genealogical research, adding depth to the lives of ancestors, or bridging gaps when church records have been lost. This conference is a basic outline of these records and where to find them both offline and online.