Bringing together twenty years of research and writing, this book provides an overview of Stephen Ball's career and shows not only the development of his most important ideas but also the long-lasting contributions he has made to the field of educational policy analysis. This volume contains sixteen key essays divided into three sections: perspectives on policy research policy technologies and policy analysis social class and education policy. Each chapter presents innovative ways of thinking about public policy, asking probing questions about what policy is, how policy is influenced and what effects intentional and unintentional policies have. As a body of work, this collection raises issues of ethics and social justice which are often neglected in the mass of policies that now affect every aspect of our education systems.