Materials on sign language are found in 419 . Books and videocassettes on both American Sign Language and signed English are in this number. Book material is available for over 90 different foreign languages. Dictionaries are available for most of these languages. Instructional material is available on audiocassette for 69 different languages.
Some materials provide listening experience for intermediate to advanced learners.
Some of these courses are available at branches, and information on all materials can be accessed through the computer catalog. Video courses are available for eleven foreign languages. These range from introductory level to more advanced listening comprehension courses. Arts librarians can answer short questions on foreign words or phrases using dictionaries in the collection. They maintain a referral file of translators and interpreters.