What Love Looks Like was inspired by a book called The Five Love Languages®. Dr Gary Chapman, a long-time relationship counselor, authored this very popular book which basically discusses the five principle ways that people speak and understand emotional love.
My husband and I received The Five Love Languages® book as a wedding gift and found it very helpful in learning to effectively express our love in a way that the other receives. The concept is that we all express and feel love differently, and understanding these differences helps us build stronger relationships.
The same is true for children. Although most of us need all the love languages demonstrated towards us to some degree there is usually one or two of the five that speak love to us the loudest.