Here starts a long run series. A substantial part of the bibliography that can be needed to approach urban and regional planning today can be accessed for free on the internet. A new page in this blog will house the references.
The European Landscape Convention (passed in Florence in October 2000) is the only international treaty on the subject. Its incorporation to the Spanish laws in 2008 has given relevance to the subject, integrating it into the juridical realm. There are relevant initiatives that aim at guaranteeing the quality of the landscape in many regions.
The Guide to Landscape Impact and Integration Asessments edited by the Regional Government of Galicia defines methodological criteria in the subject, taking into account the compulsory need for such instruments in some cases.