Developed by NVIDIA and the American Society for Deaf Children, a new AI-driven website known as Signs invites people to learn how to sign.

ASL Pro is a free tool with a wealth of quizzes, fingerspelling practices, and a super detailed dictionary complete with video examples for learning how to sign hundreds of words.

American sign language (ASL) is a visual language using hand gestures, facial expressions, and body movements, primarily used by the Deaf community in North America.

Bottom line? The All-in-One American Sign Language Bundle’ s clear, interactive lessons are one of the best ways to learn ASL online right now—and you can’t beat the $35 price tag.

NPR's Ailsa Chang speaks with Amanda Morris about how sign language evolves over time, the subject of her recent piece in The New York Times.