How to draw a Tesseract

A tesseract is a "four-dimensional" object that is analogous to a three-dimensional cube in many aspects. Here, I will explain how to draw a two-dimensional representation of a tesseract, as well as explain exactly what it is and what is meant by four-dimensional. 

Of course, this can either be done on the computer or with actual drawing tools; either way, the steps will be the same. 

Step 1 Step 1

The first step is to simply draw an octagon. Since I made the images for this 'Ible in Microsoft Paint (which has no octagon tool), I overlaid two squares over each other.