Storia del XX secolo (2000) by Giuliano Procacci is a comprehensive synthesis of 20th-century history, from the First World War up to the brink of the 2000s. It emphasizes the notion of interdependence among nations, cultures, and economies rather than viewing events in isolation. The book follows a diachronic approach, showing how phenomena such as decolonization, the Cold War, welfare states, technological change, and globalization evolved and interlaced over decades. Procacci highlights turning points like the aftermath of the First World War, the rise and fall of totalitarianisms, the nuclear standoff, the collapse of Soviet bloc, and the emergence of a more interconnected global system. The narrative is rich in detail, includes a bibliographic apparatus and index, and strives to offer balanced coverage across various regions of the world.