This prepositional phrase designates a location within a specific type of publication. A hypothetical example would be a description of planting tomatoes found within a gardening guide. The phrase specifies that the information sought resides not just within any book, but one dedicated to horticulture.
Locating information within a specialized publication like a gardening manual offers several advantages. It provides a curated and focused source of knowledge, often presented systematically, covering topics relevant to the subject matter. Historically, such books served as primary resources for disseminating practical advice and scientific advancements related to gardening, predating widespread digital access. They continue to be valuable tools, offering in-depth explorations of specific plants, techniques, and regional considerations.