Some historians have the enviable ability to weave into their works a historic account that perfectly combines high level scientific content with a stimulating and enjoyable discourse. This is the case of Josep Maria Salrach, one of the key figures of Catalan medievalism and the author of a recent work entitled, in an excessively modest fashion, "Justícia i poder a Catalunya abans de l'any mil". As Jaume Sobrequés, the current president of the Catalan Society of Historical Studies, remarked in the presentation of this volume at the Museum of History of Catalonia, the title chosen by Salrach does not do justice pun intended to the dimension of this work and its contribution to the medieval history of our country. Beyond the legal issues and the management of power in Catalonia before the year 1000, Salrach's work provides a rich and well-founded vision of Catalan society from early medieval times through legal sources