During the convulsive and fast moving 20th Century, sculpture underwent huge formal and conceptual transformations which were essential to the construction of contemporary thought. This book aims to cover some of the paths which sculpture has taken by analysing artists' ideas and work which are considered milestones on this journey. This book makes no claim to be a "history of sculpture", or even a complete map of these pathways, but rather to bring together a collection of independent essays which nevertheless, together provide an overall vision of a particularly turbulent and contradictory period in contemporary art.