This book interprets Hannah Arendt's work as a "wandering" type of political theory. Focusing on the sub-text of Arendt's writings which questions "how to think" adequately in political theory whilst categorically refraining from explicitly investigating meta-theoretical questions of epistemology and methodology, the book characterizes her theorizing as an oscillating movement between the experiential positions of philosophy and politics, and by its distinctly multi-contextual perspective. In contrast to the "not of this world" attitude of philosophy, the book argues that Arendt's political theory is "of this world". In contrast to politics, it refrains from being "at home" in any particular part of this world and instead wanders between the multiple horizons of the many different political worlds in time and space. The book explores how these two decisive motives of Arendt's theoretical self-perception majorly influence her epistemological, methodological and normative frame of reference and inspire her understanding of major concepts, including politics, judgment, understanding, nature, and space.