In general these are to be descriptive and evaluative reviews, designed to make readers aware of new books in the field, for use as a selection tool.
Purpose of the book--who is the intended audience, and what is the general scope and subject area. Is it designed as a textbook (generally we're not reviewing those but may be worth mentioning)? Is it a handbook, bibliography, guide to the literature?
Organization--include information about bibliographies, indexes, appendices if available. Any special features should be mentioned.
Comparison to other publications on the same subject and within a similar time frame.
Authority--any information about the author or editor, and previous works by them if known.
Length of review--no specific limits but probably within the range of 350-500 words would be normal. Feel free to use examples from the text to support your evaluation, so this may make it a bit longer.
Review editor will consult on any changes necessary before submitting it to ISTL for final publication. Reviews should be sent (fax, e-mail, or hard copy) to:
Bioscience and Natural Resources Library
2101 VLSB #6500
Berkeley, CA 94720-6500
Reminder: be as open as possible about the evaluation--both positive and negative comments are appropriate.