Nowadays, the Reverse Logistics field is becoming very important. On one hand, laws are imposing companies to be responsible for the contamination made by their products. On the other hand, companies have discovered the profits derived from a good Reverse Logistics process. This paper is the result of the work done by a group of companies from the Spanish Editorial sector to understand and improve their Reverse Logistics process. The paper describes the characteristics of the Reverse Logistics process in this sector and the improvements identified by the work group .