This video involves making the distinction between two different types of stitches that are used in knitting. To be more specific, the video explains how to differentiate between a knit stitch and a purl stitch. The video is a part of a series of videos that deal with knitting; the speaker mentions that the subject at hand was touched on in a previous video. The speaker explains that is important to understand the difference in knitting so you can keep track of your work. The speaker explains how to differentiate between the two types and then goes on to visually demonstrate what to do when you encounter each type.