Polytheisms may well be the world's most undervalued cultural resource. From the dawn of history until quite recently, the default religious orientation on the planet was to recognize an open-ended plurality of unique divinities that manifest in every realm of natural and social life. By hosting a plurality of Gods, polytheistic civilizations exhibit maximum diversity in maximum solidarity – each one is a multiverse. Polytheism has been at the heart of the most ancient and resilient civilizations on Earth. Yet polytheist traditions have been stigmatized and persecuted for centuries, countless of them have been eradicated and prejudice against them and the very idea of a multiplicity of Gods continue to distort how they are perceived both by outsiders and in many cases even among their participants. This book offers an overview of continuous and revived polytheistic traditions from around the world together with critical discussions of the issues affecting them and their reception, offering a basis for further study and comparison.