Question: ![enter image description here](https://i.stack.imgur.com/Dm53V.png)

Can anyone help me figure out what this icon is for???

Answer: 
I believe that icon indicates a new notification from [Google Play Newsstand](https://play.google.com/store/apps/details?id=com.google.android.apps.magazines&hl=en).

**Edit:**

Confirmed my assumption this morning when a notification popped up:
[![Screenshot of Google Play Newsstand notification](https://i.stack.imgur.com/K68Vk.png)](https://i.stack.imgur.com/K68Vk.png)

I don't know how to take a screenshot of the status icon bar, so you'll have to take my word that the icon appeared there too.
To check which app is giving you that notification, pull down the notification tray and you will see a notification item with that icon. Make a long click on that notification icon and it will show you the name of the app and other options for notification control.