The book presents the situation of the union movement in Central and Eastern Europe in the thirty years since the systemic transformation. In an era of unprecedented socio-economic turmoil and change that has naturally influenced legal regulation, the authors present the role, history, importance and different perspectives on the perception of trade unions. They indicate the achievements and nature of this institution over time in the context of challenges emerging in the labour market. The aim is to show their emergence, changes, rules and impact on the current role in society. Each country has its own realities, has taken a different path, and the intention is to show the results achieved.