Floral Wax Bark Melts Project

I have seen and made wax melts but I have never heard of Bark Melts. What are wax melts?  They are a great alternative to candles because they fill the room with scent and provide a cozy atmosphere.  I thought these Floral Wax Bark Melts from Brambleberry were really interesting since it reminded me of peppermint bark candy that you would find around the Christmas Holidays.