The book "Changes of the Czech-US Relations After the EU Enlargement" offers a comprehensive analysis of the relations between the Czech Republic and the USA from the 1990s until the eastern enlargement of the European Union in May 2004. It particularly examines the changes in bilateral relations following this historic enlargement and highlights both the political and economic dimensions of the interactions between the two countries. The author, Marketa Chrustova, first provides an overview of the formal foundations of the political relationships and formulates hypotheses regarding the possible changes arising from the new conditions of EU membership. The book also addresses the diplomatic aspects of the last fifteen years and analyzes the development of trade relations as well as the potential economic changes triggered by the EU enlargement. The concluding summary offers a perspective on the observed and expected changes in Czech-American relations in the context of EU accession.