To access the Documents Gallery, go to “Assets” > “Non-Personalized Assets” > "Documents".
In the Document Gallery section, you can view all documents available to you. You can choose the layout of your gallery using the “Thumbnail View”, “List View”, and “Flyout View” buttons.

If you are having trouble finding a specific document, you can narrow your search by folder or filter, or search for records (if you know the name).