Why Do We Do That? Origins of Christmas Traditions is a Christmas powerpoint presentation that explains how many of the Christmas traditions we observe originated. The set comes with a colorful powerpoint presentation containing graphics and a christmas audio. Also included with this set is a color PDF version of the powerpoint and a PDF version with a white background for printing a reader version. A wonderful way to present the origins of common Christmas traditions. This set would be a great supplement to my YIPPEE! CHRISTMAS! Set - also posted in my shop.