Navigating the Children's Collection

Go to an online book store and look for editorial or professional reviews (rather than customer reviews):

http://www.amazon.com
http://www.barnesandnoble.com/

Locate reviews out of periodicals using a periodical database:

Academic Search Complete

• Perform a phrase search for the title of the work or the author
• Too many results? Consider limiting results to document type: book review

Locate book reviews from the New York Times back to 1981:

New York Times Books