Thanks to the great help of Mang Sun, system librarian, DMC is able to offer its first workshop on Tableau Public in Spring 2017. The Introduction to Tableau Public workshop uses the DMC equipment circulation data as a sample data set to explore basic features and functions of Tableau Public. You could tell the equipment checkout trend, patterns, and interesting findings based on the data of 2014, 2015, and 2016.
Here is the link to the published Viz.
Below is the embedded published Viz. Scroll down to the bottom of the Viz, click on the full screen icon 
at the lower right corner to see the beauty of the chart.
