In 1980 it was the subject of an anthology by Nancy Chambers titled The Signal Approach to Children's Books, A Collection.
[1] It was described by Peter Hunt in The Oxford Encyclopedia of Children's Literature as "one of the outstanding journals in its field, with a reputation for integrity, accessibility, and innovation.
[2] In 2016, Seven Stories - The National Centre for Children's Books, acquired the Aidan and Nancy Chambers archive including the records of the production of Signal.
[3] Media related to Children's books at Wikimedia Commons
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