Inflation targeting is a monetary policy rule which aims to diminish inflation and keep it atstable low levels. This rule has been successfully implemented by many countries amongwhich is Colombia. After twenty-five years of moderate inflation, Colombia has managedto keep inflation at a one digit level since 1999, reducing uncertainty and increasing thecredibility of the Central Bank.This paper describes the main characteristics of the inflation targeting rule, its process ofimplementation in Colombia and the importance of providing adequate information aboutthe seasonal forecast in order to achieve the aimed inflation target.