This unique reference can help users locate a sign whose meaning they have forgotten, or help them find the meaning of a new sign they have just seen for the first time.

Unique to this lexicon is not only the inclusion of many terms that are used especially for sign languages, but also the fact that for the terms, there are not only examples from spoken languages but there are also glossed and translated examples from several different sign languages.

The Gallaudet Dictionary of American Sign Language contains over 3,000 illustrations. Each sign illustration, including depictions of fingerspelling when appropriate, incorporates a complete list of English synonyms.

Simplified Signs presents a system of manual sign communication intended for special populations who have had limited success mastering spoken or full sign languages. It is the culmination of over twenty years of research and development by the authors. The Simplified Sign System has been developed and tested for ease of sign comprehension, memorization, and formation by limiting the complexity of the motor skills required to form each sign, and by ensuring that each sign visually resembles the meaning it conveys. Volume 1 outlines the research underpinning and informing the project, and places the Simplified Sign System in a wider context of sign usage, historically and by different populations.

Simplified Signs presents a system of manual sign communication intended for special populations who have had limited success mastering spoken or full sign languages. It is the culmination of over twenty years of research and development by the authors. The Simplified Sign System has been developed and tested for ease of sign comprehension, memorization, and formation by limiting the complexity of the motor skills required to form each sign, and by ensuring that each sign visually resembles the meaning it conveys. Volume 2 presents the lexicon of signs, totalling approximately 1000 signs, each with a clear illustration and a written description of how the sign is formed, as well as a memory aid that connects the sign visually to the meaning that it conveys.