Similar to the Swiss Cheese Plant (Monstera deliciosa) these Monkey Masks get their name from the large holes in the leaves which you can peek through!
 
The plant is easy to care for, keep it moist and warm, ideal for the bathroom and it will quickly generate new leaves. Water when the top 1-2cm of soil are dry. They can be left to trail down shelves or from a hanging planter or can climb a moss pole! Clever little plants!