If you have seen this post before and realize that there was a slight change, your right; there was a slight change in the first paragraph thanks to Rick Wicklin for pointing that out. I had stated that for OLS regression the dependent variable should closely follow a normal distribution. However, that isn't quite correct. The residuals should follow a normal distribution if your are going to do hypothesis tests, assess p-values, or include confidence intervals. I also added in two references as well as Rick's blog in 2018 addressed the normality issue already. However, if you are going to need any confidence intervals or p-values, I'd suggest transforming as this blog indicates.