This book is about the construction of political space, boundaries, and what can be called post-Soviet geopolitics in Estonia. I set out to address the following questions. How is political space constructed in post-Soviet Estonia? How are symbolic and material, intrastate and interstate boundaries constructed in Estonia? How do these construction processes contribute to the whole big game of 'post-Soviet geopolitics', or, in other words, the bigger constellation of spatially and geographically dimensioned political relations between the Baltic states, Russia, and other agents with an interest in the Baltic region, that is, organisations such as the CE, CBSS, ED, OSeE, and NATO? Thus, the idea is to explore the case of Estonia in depth in order to open up insights into both theoretical puzzles and broader empirical developments in the post-Soviet space. To take a closer look at these issues, I suggest starting with a brief historical journey that will help the reader to understand Estonia's path to post-Soviet geopolitics.