“This volume provides useful empirical evidence of the dangers of diffusing the oversight of external concerns through multiple competing ministries … . For anyone seeking to understand the immense complexity of commercial diplomacy, and to gain a grasp of the trajectory of this core area of diplomatic activity, this is an invaluable volume, and likely to become a standard work.” (Erik Goldstein, Journal of Contemporary History, Vol. 55 (2), 2020)“This volume of collected essays on the history of British commercial diplomacy across the twentieth century, edited by three specialists in British foreign policy, is … both extremely timely and very welcome. … Overall, the volume makes an important contribution to the study of diplomacy, with the combined emphasis on the need for a wide range of perspectives on the importance of commercial matters, and the value of multi-archival research.” (Sue Onslow, H-Net Reviews Humanities and Social Sciences, networks.h-net.org, September, 2019)