I have used this resource for a very long time. It is pretty amazing.
I found it interesting as a demonstration in how the vast majority of peoples have been dumbed down simply by the lack of access to such texts.
The dumbing down through schooling was most apparent in the children's book archive, especially a copy of Jack and Jill that I discovered. Not only was it a long story but there was another character and a lesson in the ending.
I've found some other very cool books there.
One contained a list of the original land owners in America, and the millions of hectares they purchased before the land was settled beyond trading post status.
Anyway, I'm happy you found this resource and shared.