How to have multiple views for sharepoint documents?

I have a sharepoint with a lot of documents stored in it. I would like to have different views for these documents. One view would be by "project" to se开发者_运维问答e all related project documents, another view would be "Design Documents" to view all design documents across all projects. Is there a way to do list so that there is only 1 copy of the document?

Ofcourse there is, that's what list view's are for.

You can group, filter and sort items based on various fields.