Creating Sparklines with Google Drive Spreadsheets

In my spare time over the last few days, I have been working on my eBook about data analysis apps.  I discovered that Google Drive Spreadsheet allow users to create Sparklines!  Sparklines allow us to visualize trends within a single spreadsheet cell.  For example, you could show a trend for hemaglobin A1C, blood sugars, any blood chemistry value, or body temperature changes.  There is a great video on the topic by Google Gooru on YouTube at http://www.youtube.com/watch?v=ZDB_TKcHh_0&feature=player_embeddedhttp://www.youtube.com/watch?v=ZDB_TKcHh_0&feature=player_embedded