This book develops ideas about policy networks, epistemic communities and policy learning in relation to think tanks.

Parliamentary Affairs- "...a sophisticated and balanced evaluation"
Austrian Broadcasting Corporation- "This comprehensive study of British and American Think Tanks tells us how they work, how they"re used and hot to distinguish between them."
Political Studies- " By drawing on the literature of agenda setting, knowledge communities and policy entrepreneurship Stone is able to give her study a strong conceptual framework within which to conduct her analysis...the overall impression is of a very sound and stimulating piece of work"
New Times - "a wide-ranging and comprehensive analysis...an excellent book"
Contemporary Review - " This is a thoughtful and well-researched study of an aspect of policy development which has not been much written up in this country...an essential book for the library of the policy student- and of the decision taker in Government"
The Political Quarterly- "This book has the great merit of seeking to debunk the myth of the overmighty think tank, refusing to acccept claims of influence and success without proof"
Times Literary Supplement- " As a reference work it is...invaluable