Очень помогает (Very helpful app)

UPD: Dr.Bill, where did the NEXT button gone?!

Конечно, желательно видео с переходами букв.

Thanks from Russia, Bill.
Were playing ASL with me 3 yo son.
I am fingerspelling fan, the boy is signing fan.

Started on ASL from Signing Time videos which I came across looking for good English language material.

neopaf about ASL: Fingerspelling (Lifeprint.com), v2.0