This book offers a systematic account of how sociology in Czechia developed from the post-Czechoslovak transition to a structurally mature and internationally recognised discipline by 2025. It traces that trajectory across the key stages of recovery, consolidation, internationalisation, and the most recent phase of public engagement, data infrastructures, and research on systemic risks. The volume is organised in three substantial parts: first, it explains the general historical and institutional development of contemporary Czech sociology; second, it analyses the principal achievements and schools of sociological thought; and third, it examines the leading figures who shaped these directions. It therefore functions not only as a historical overview, but also as a map of the intellectual architecture of Czech sociology. A major strength of the book is that it presents Czech sociology as a polycentric field built through the complementary roles of academy-based research institutions and university centres, especially in Prague and Brno. It also shows how the discipline developed strong thematic specialisations in social inequality, education, gender, family and ageing, religion, housing, migration, public opinion, methodology, and crisis research. For institute interns, the book is particularly useful because it demonstrates how a national social science can combine rigorous empirical work, theoretical reflection, public relevance, and European research integration. It highlights the importance of journals, survey research, social data archives, and institutional continuity in building a resilient scholarly field. Overall, the publication is both an academic study and a practical reference point for understanding how sociology becomes socially consequential, methodologically self-aware, and internationally visible. It is well suited for interns who need a compact but serious introduction to the institutional logic, research culture, and strategic significance of contemporary Czech sociology.