James Corner - Agency of Mapping

In the Agency of Mapping, James Corner argues that mapping has become to the average human being a very practical and overlooked tool. Corner's vision of mapping is that one views every aspect of the land, and it incorporate everything one experiences in the environment. I wondered if there are maps that people use practically that document other people's experiences? Also, would adopting an international "key" and/or "scale"help other people know the environment better or would it just endorse the disdain of the documented nature in a faster rate?