A good PE ratio is one that is inline with the company's growth and profitability. For example, a company with a high PE ratio might be expected to grow at a faster rate than a company with a lower PE ratio. A typical average P/E ratio falls between 20 and 25, where a lower P/E ratio is considered better. However, it is important to remember that the PE ratio is just one metric and should not be used as the sole basis for investment decisions. Instead, it is best to view the PE ratio in conjunction with other factors such as the company's financials, valuation measures, and business prospects.