This second volume of the magazine Lux Barcelona reflects on public integrity, on the code of ethics and on related groups of interest. Following an introduction of the director of the Transparency Agency, Gemma Calvet, the "Code of ethics and conduct for senior officials of the AMB and related bodies"—approved by the Metropolitan Council on 2018—is reproduced in its entirety.

The two mainstays in the field of good governance are the "Guide to the identification and prevention of criminal risks in the Barcelona Metropolitan Area and its associated and dependent entities", by Marc Molins, and the reflection made by Pau Bossacoma, "Metropolitan funding of political groups, political parties and trade unions".

The magazine Lux Barcelona is completed by four insights that, in the section "Lighthouses", invite us to reflect from a humanistic perspective. In this second volume, the beam of our lighthouses is shone by Begoña Román, "Taking care of institutions", Francesc Torralba, "Ethics, cosmetics and credibility", Miguel Ángel Gimeno, "Ultimate goal: A culture of integrity", and Mònica Planas, "Mothers before time". The gaze of the photographer Kim Manresa and the illustrations of the graphic opinion leader Jordi Duró enrich the global vision sought by the magazine.