There are several ways to measure the results of a job and each one of them needs the KPI’s (key indicators) to be stipulated at the beginning. But in a general context, just the fact that you start an advertising work by professionals, the changes are easily perceived visually and in the course of the work, they are consolidated in numbers and data. There is indeed the possibility of not reaching the desired goal, but the entire process is mapped and through data collection, new actions will be determined.