Source: https://xkcd.com/2671/
Geometric Sequence from Rotating an Image
Category: Humor
Division Notation
Source: https://xkcd.com/2687/
Precision vs. Accuracy
Source: https://xkcd.com/2696/
How to Detect a Change in the Slope of Your Data
Source: https://xkcd.com/2701/
More fun with logarithmic scales
Source: https://xkcd.com/2711/
Advanced Techniques
Fermat’s First Theorem
Source: https://xkcd.com/2689/
Rounding
For more details on how this rounding works, see https://www.explainxkcd.com/wiki/index.php/2585:_Rounding.
Selection Bias
Decorative Constants
Mean Green Math 