3Strike American Sign Language Free HD Dictionary

About American Sign-
Rich non-verbal language of gestures and hand symbols. Gesture represent concept, word or a letter.

The American Manual Alphabet:
Manual alphabet that augments the vocabulary of American Sign Language when spelling individual letters of a word is the preferred or only option, such as with proper names or the titles of works. Letters should be signed with the dominant hand and in most cases, with palm facing the viewer.