Authority includes the qualifications and reputations of the authors and publishers. It also asks the selector to consider whether this is an original work or a revision of a previous work. Scope considers whether the work covers what it claims to cover. It also examines the currency of the contents, including bibliographies and their levels of scholarship. Treatment requires the selector to examine the accuracy of the information, identify biases, and determine how well the authors balance the coverage of the subject.
Treatment also considers the level at which the work is written.
Arrangement covers the actual order in which the information in the text is presented. It also includes an examination of the quality of the indexing. Format includes such points as the quality of the illustrations, binding, and the materials used in the work. Special features covers the factors that make the work unique. Unless something in the announcement runs up a red flag in your mind, don t worry about it.