An image of every cover is included for easy identification. A full series checklist covering every major collecting variant is included, allowing the collector to define a collecting theme and track progress toward its completion.

The key to understanding first printings is provided, and unique aspects of the series such as the author's letters and the Random House Reading Program are discussed. Related material such as records are cataloged, illustrated, and completely explained. Guidelines to price and rarity are provided. The Collector's Guide describes and illustrates every variant and sub-variety produced during the 15-year history of the series. Even today these titles are acknowledged as relevant educational texts. They combined excellence of authorship with first class illustrations and strong production processes. World Landmarks were Random House's premier series produced for young readers from 1953 to 1968. Which minerals fluoresce? Where are fluorescent minerals found? What makes a mineral fluoresce? Why does ultraviolet light produce fluorescence? What is an activator, and how does it contribute to fluorescence? On these matters, the available mineralogy books are largely silent.Ī Collector's Guide and Checklist to World Landmark Books provides everything the collector of this beloved children's series needs to begin and expand his library of this award-winning series.

He or she will seek in vain for the answers to questions which present themselves as in terest in fluorescent minerals grows and matures. Yet when the collector searches for any information on this subject, little will be found. The number of collectors who now main tain a fluorescent collection is substantial, interest is constantly increasing, and manufacturers have recently responded by the intro duction of new ultraviolet equipment with major improvements in utility and performance. Nowhere is this need greater than in the subject of the fluorescence of minerals. However, as interest in mineralogy has grown, as collectors have become increasingly knowledgeable and aware of mineralogy in its many facets, the need for more specialized information has also grown. As a result, the reader now has a choice among mineral locality guides, field handbooks, photo collections, or books dedicated to the systematic description of minerals. In response to the growing demand for informa tion which this large and active group has created, a number of books have been published dealing with mineralogy. Over the last several decades, the number of people who are actively involved in the hobby or science of mineral collecting has grown at an increasing pace.

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