How to View Multiple Mail Folders on Windows Phone 8

When a mailbox is accessed from the Start screen or apps list from a Windows Phone, the Inbox folder is the default folder that displays.  Only the Inbox and Sent folders push to sync by default.  In order to view and synchronize additional folders, take the following steps:
1.  Tap the menu icon in the bottom right corner (the icon appears as three dots ...).
2.  Tap folders.
3.  Tap show all folders.
4.  Tap the folder you want to view.
5.  Tap sync this folder.
Checking for new messages will display and the device will download email from the number of days specified in sync settings.  This can be edited in the settings for the email account.