You can view with a single click all email or photos or files exchanged with a contact as follows
1. Click Contacts on the left accordion menu
2. Click My Contacts or Public Contacts under Contacts on the left accordion menu, depending on where the desired contact is located
3. In the Contacts page, on the right pane there are three links: Emails, Files and Attachments. Click on one to see the related files.
You can also go directly to a contacts page from any email be simply clicking on his name or profile photo