A more thorough explanation:

The Martindale-Hubbell Law Directory is a collection of books that are published annually. These books contain a list of lawyers and law firms in most cities in the United States, as well as corporate legal departments, government lawyers, foreign lawyers, and lawyer-support providers. The directory also includes a summary of the laws of the states, the District of Columbia, and territories of the United States, as well as a summary of the laws of many foreign jurisdictions, including Canada and its provinces.

For example, if you are looking for a lawyer in a specific city, you can use the Martindale-Hubbell Law Directory to find a list of lawyers and law firms in that city. You can also use the directory to find information about the laws in different states and countries.

The Martindale-Hubbell Law Directory is a valuable resource for anyone who needs legal assistance or wants to learn more about the law. It provides a comprehensive list of lawyers and law firms, as well as information about the laws in different jurisdictions.