The aUI alien alphabet (pronounced"ah-OOie") was seen during an "encounter" by John Weigart, though he never specified if he saw it, was given it or found it somewhere.
He wrote a book about it, titled "aUI: The Language of Space". The introduction was written by a Harvard Professor who said, "Basic categories are communicated through simple symbols and new concepts are created by combining the symbols by way of simple, intuitive logic. The result is a language which has the simplicity of archaic speech plus the sophistication of modern thought".
I don't know if that's good or bad....