This volume provides a comprehensive taxonomic survey of the world's flowering plant families to clarify their evolutionary relationships and morphological characteristics. Edited by V.H. Heywood, the work synthesizes contributions from numerous botanical experts to create a structured reference for identifying and understanding the diversity of angiosperms. The text utilizes a systematic classification framework to organize data on distribution, diagnostic features, and economic importance for each family.

Botanists and researchers frequently cite this work as a foundational reference for understanding angiosperm taxonomy. The text is noted for its high level of technical detail and its utility as a standard resource in academic botanical collections.