Building on this previous experience, including partnerships with some international institutions (World Bank, UNEP, ISO, EU) the Sustainability Pack 2013 compris three complementary publications: the "Project Sustainability Management" applications manual - a guideline for consulting engineers implementing major sustainability issues in projects, “Rethink Cities”- a white paper on societal challenges and the 'Project Sustainability Logbook' - a tool to support owners and their partners with collaborative work on sustainability.