This volume serves as a compact, portable repository of general knowledge designed to provide immediate answers to a diverse array of factual inquiries. The author, William Allan, compiles a broad spectrum of data points ranging from historical milestones and geographical facts to scientific discoveries and cultural trivia. The text is structured as a quick-reference tool, prioritizing accessibility and brevity to assist readers in verifying information across multiple disciplines without the need for extensive research.

The subject matter points to a highly accessible, entry-level reference guide intended for casual readers seeking quick verification of common knowledge. Its compact format suggests a focus on utility and portability rather than deep academic analysis or exhaustive historical context.