'Opinion polls have changed the political process probably as much as modern media. This is why we need thorough evidence on their role, effects, and institutional environment. This book provides this evidence from an international perspective and by first-rate authors.' - Wolfgang Donsbach, Dresden University of Technology, Germany 'Backed by leading public opinion and communication scholars, Christina Holtz-Bacha and Jesper Stromback have created the best volume yet on the interplay of polls and media. Essential reading for scholars, practitioners, and students--indeed for anyone interested in the subject.' - Thomas E. Patterson, Harvard University, USA.