Skew literally tells, so if this is, let me do it in a different color. If this is a perfect normal distribution, and clearly my drawing is very far from perfect, if that's a perfect distribution, this would have a skew of 0. If you have a positive skew, that means you have a larger right tail than you would have otherwise expect. So something with a positive skew might look like this. It would have a large tail to the right. So this would be a positive skew, which makes it a little less than ideal for normal distribution. And a negative skew would look like this.