Book excerpt: In this book leading social scientists from many countries analyze the extent to which we are seeing a globalization of culture. Is a unified world culture emerging? And if so, how does this relate to existing cultural divisions and to the autonomy of the nation state? Differing explanations are offered for trends towards global unification and their relation to an economic world-system. Will the intensification of global contact produce increasing tolerance of other cultures? Or will an integrating culture produce sharper reactions in the form of fundamentalist and nationalist movements? The contributors explore the emergence of `third cultures', such as international law, the financial markets and media conglomerates, as