❧ Describe, in your own words

Since the current working set of Unicode characters gives you a range of six, as noted by WSJ’s Zach Seward, sparktweets fail Edward Tufte’s definition of a sparkline as “small, high-resolution graphics embedded in a context of words, numbers, images.” (Emphasis mine.) Tufte designed them to work well in print applications due to the high pixel and information density of printed ink.