New York Times published a fantastic and simple animated introduction illustrated by Nigel Holmes labeled "What is the Higgs?" as a result of two physicists, François Englert and Peter Higgs winning a Nobel Prize for their theory explaining how particles acquire mass.
In case you missed it, you can view this amazing simple and visual introduction to the Higgs-Boson particle here:
http://www.nytimes.com/interactive/2013/10/08/science/the-higgs-boson.html