Authors whose articles have been accepted for publication will receive printing proofs, normally in the form of PDF files, to the contact address that they provide, and these should be carefully checked to see that they are entirely the same as the original accepted for publication. Proofs should be returned within 72 hours of receipt. Given that these proofs are created from the electronically submitted manuscripts already accepted, no modifications or alterations will be accepted at this stage, apart from correction of printing errors or small mistakes not detected during the revision process. Authors will receive 5 copies of the issue of the journal in which their article appears, free of charge. In addition, authors may request additional copies of the issue in which their manuscript is published at special rates established by the Colegio Oficial de Psicólogos de Madrid.