In this chapter, we discuss the main themes of the book and give examples of how the rest of the chapters are related to these themes. We have identified two main aspects that are partly overlapping and are equally relevant for international firms’ work with ethical questions related to their business. One concerns how ethical behaviour related to sustainability can be applied as a main part of firms’ corporate strategy and how this may strengthen the international competitive position. This is particularly relevant when considering that it cannot be taken for granted that there is always a positive relationship and that actors may sometimes question an emphasis on ethical behaviour that goes beyond the accepted norms and regulations. The other main theme is related to international firms’ crucial role in supporting sustainability on an international level and contributing towards achieving sustainable development goals (SDGs). Solving many of the challenges related to climate change, migration, poverty and inequality is likely to require the involvement of international firms. The book identifies several routes forward to achieve this.