Guidance is an important part of the business world. It's a report that a public company issues to shareholders detailing the earnings it expects to achieve in the upcoming fiscal quarter or year ahead. This document can have a big impact on stock prices, so it's crucial that companies get it right.There are two types of guidance: forward-looking and historical. Forward-looking guidance is what a company predicts its earnings will be for the future, while historical guidance reflects actual results from past quarters or years.Some people think that guidance is overrated and doesn't really matter all that much. But I disagree. I think it's an important tool for investors and can provide valuable insight into how a company is doing financially.