Recent linguistic landscape (LL) research has witnessed a change in focus to untypical, peripheral and fluid signs. Compared to typical (or permanent, fixed, etc.) signs which tend to be subject to strong policy intervention, language use on untypical signs is often more autonomous, thus could better reflect the "de facto" language…

A review of "Sign Languages Used by Deaf People, and Psycholinguistics: A Critical Evaluation" (A. Van Uden, 1986), a book "denying that ...there is any such thing as a sign language," points out that a sign language's perceived lack of phonological and morphological rules is a more social than linguistic problem. (CB)