American Sign Language (ASL), both as the focus of scholarly study and as an increasingly popular foreign-language option for many secondary and university level students, has made remarkable strides during recent years. With respect to the linguistics of ASL, there has been a veritable revolution in our understanding of the nature, structure, and complexity of the language since the publication of William Stokoe's landmark Sign Language Structure in 1960. Works on both theoretical aspects of the linguistics of ASL and on the sociolinguistics of the Deaf community now abound, and the overall quality of such works is impressively high. Also widely available now are textbooks designed to teach ASL as a second language. Such textbooks vary dramatically in quality, ranging from phrasebook and lexical guides to very thorough and up-to-date works focusing on communicative competence in ASL.