What is a key characteristic of a single-volume hornbook?

A single-volume hornbook is designed to provide a thorough and in-depth overview of a specific legal subject. This methodical approach covers fundamentals such as definitions, principles, and case law relevant to that area of law, making it an essential resource for understanding complex legal topics. Its comprehensive nature allows law students, practitioners, or anyone interested in that particular subject to gain a solid foundation without needing to consult multiple sources.

In contrast, options that suggest providing case law from various jurisdictions or combining multiple subjects into one volume do not align with the single-volume hornbook's purpose. Additionally, although many law students may find hornbooks helpful, there is no mandate that establishes it as a required text.