One of the most important features of SharePoint is the document library. SharePoint is a document management system since 2001, so the document library is one of the key features. Initially the only instance of the document library was within team sites. In later versions and in Office 365 there are other locations to store documents, like OneDrive for Business.
The user interface of the document library hasn’t changed much since SharePoint 2007. Yes, in SharePoint 2013 drag-and-drop was introduced, the UI has been polished, but in basis the UI was the same. And the confusing part is (was?) that the document libraries in SharePoint looked different than e.g. Onedrive for Business. That has now changed! Continue reading