A judgement can be reached concerning the overall quality of the material and its suitability for use in the curriculum. This influences the credibility of the work. Dust jackets, introductions, and teachers' guides may contain some information. Biographical dictionaries and encyclopedias can also be useful to find information about prominent authors. The title, dust jacket, introduction, container and teachers' guides should provide some information.
Some material is recommended for a particular age or grade level.
Note that some materials may be of interest to both juvenile and adult level audiences. Examine the Teacher Resource Manuals and Curriculum Guides published by Alberta Learning. Consult the manual or guide for the subject area of interest at the appropriate grade level. Check data against a known reputable source. Check the typeface and illustrations.