This document discusses credit ratings and factors that affect them. It begins with an introduction to credit ratings as assessments of creditworthiness that are conducted by agencies like Standard & Poor's and Moody's. It then discusses the history of credit ratings beginning in 1909 and their increased importance after rules in 1936 required considering ratings for investments. The document outlines several key points about why credit ratings are important for determining loan approval and interest rates, and as indicators of bond investment risk. It concludes with an explanation of factors agencies examine like payment history and economic potential, and tips for maintaining a high credit score.