This work investigates the development and characteristics of the New Zealand wine industry during the late 20th century. The author, J.C. Graham, provides a foundational overview of the viticultural landscape, examining the specific regional climates and grape varieties that define the nation's output. By documenting the state of the industry at the time of publication, the text serves as a historical record of the techniques and producers that shaped the early identity of New Zealand wine.

The subject matter points to a specialized, historical reference text intended for enthusiasts of viticulture and regional wine history. The framing suggests a foundational, descriptive approach that documents the industry's status during a pivotal period of expansion.