This book is the first systematic study of policy analysis activities in Spain. It provides a comprehensive overview of how policy actors, including politicians, think tanks, researchers, interest groups and experts, generate information for the policy-making process. The book explores how executive and legislative actors participate in the production of policy analysis and how all actors elaborate and disseminate information on policy analysis. Contributors consider the ways different policy actors are involved in the production of data and information about policy problems, the resources used to produce policy analysis and the type of analysis produced over time in different policy areas.