Letter stencils are a great tool for artists, designers, draftsmen, and anyone else who wants a quick, easy, low-tech way to add consistent and precise lettering to art, murals, signs, and other ...

You report that prehistoric hand stencils on cave walls with various digits missing could represent a sign language. I am a computer scientist, not a linguist, so I have a different take on the matter ...

The cave stencils look like tic-tac hand signals used by bookmakers to communicate betting odds at race courses to me. Perhaps they were valuable when out hunting. My granddaughter learned sign ...