Well, I'm glad I'm not the only one who finds all of this more than just a little fishy. As someone else said upthread, these sketches look nothing like the art we know from the real people working on the show. This seems to be a massive practical joke. I'm not laughing, though.
Well..there is a book that with treatments to lost episodes and movies. It´s mostly TOS...but there is also some TNG stuff in it. I don´t know if its still in print though. I don´t know the english title because I bought the german translation.
Yes, I own that book, too. The presentation is rather dull, but the stories themselves are great. And, this
seems to be the original english version.