Free Books on Architecture

A friend just made me aware that the MIT Press digitized a few of their old architecture books and made them available for free.

You can find them under this link.

Although most of them are not relevant here, there's two about ancient greek city planning, which might be interesting. They also might add more in the future.

Also we could use this thread to share freely available books on relevant architecture in general. (if there is already a thread like that please make me aware of it.)