Secondary publishing rights articles have been introduced in seven European countries, while others are exploring their introduction. These are considered as an example of the broad efforts to recalibrate the entire scholarly communication system, together with rights retention policies, and their importance has been greeted by the Council of Europe in its recent conclusions. This KR21 study, conducted by LIBER, investigated the implementation of SPR, with the aim to understand their impact, and to comprehend what obstacles need to be overcome in the countries that do not have this sort of legislation. The publication is issued as part of the Knowledge Rights 21 project, funded by Arcadia – a charitable fund of Lisbet Rausing and Peter Baldwin.