This book is a collection of thoughts, analyses, discussions, and interviews conducted, over the past months, with professional colleagues, and European and American friends who work in government agencies, universities, and financial consulting firms. In recent years, European institutions have taken decisive action on many fronts to make the economy more sustainable from an environmental and social point of view. The financial sector has been among the most involved and impacted by measures to maximize market transparency and the integration of ESG criteria in investment products and processes. This book analyzes the impact and new regulations that have been approved or are in the next closing. Furthermore, an analysis will be conducted between the CSRD rule and the first SEC rule.