When your character is close enough to a building or an npc that has Work Orders, a tooltip will appear above its npc's head. Works for both Draenor Garrison and Legion Class Hall

This tooltip contains the following information:

• Number of Work Orders ready to be picked up
• Number of Work Orders in queue
• How long until the next work order will be ready
• What that work order produces

NOTE: This addon relies on friendly nameplates active in order to work, by default it enables them while in garrison/class hall and disables them while outside. To change this behavior you can open the options frame with the /wot slash command