"The Political Economy of Expertise" is a carefully argued examination of how legislatures use expert research and testimony. Kevin Esterling demonstrates that interest groups can actually help the legislative process by encouraging Congress to assess research and implement well-informed policies. More than mere touts for the interests of Washington insiders, these groups encourage Congress to enact policies that are likely to succeed while avoiding those that have too great of a risk of failure. The surprising result is greater legislative efficiency. "The Political Economy of Expertise" illustrates that this system actually favors effective and informed decision making, thereby increasing the likelihood that new policies will benefit the American public.Kevin M. Esterling is Assistant Professor at the University of California, Riverside.