I systematically collect original primary documents spanning decades, and sometimes centuries, from various national and private archives around the world. Some data are previously restricted and many take multiple years to gain access.  

From the British Library's India Office Records, I have collected about 55,000 pages of records from the early history of the English East India Company from 1600 to 1789. This includes minutes from its board of directors' meetings, reports and correspondence from its field operators, petitions to and correspondence with members of parliament and the monarchy, charters, preparations and arguments for trials, and various company publications and public propaganda.

From the Bibliothèque National de France, the International Chamber of Commerce archives, and the University of Chicago library, I have collected about 30,000 pages on the International Chamber of Commerce from 1919 to 2015. This includes minutes from its top executives' meetings, minutes and speeches from the annual meetings of its international congress, and various publications and propaganda.

From the International Institute of Social History, I have collected about 25,000 pages on the early history of Amnesty International from 1961 to 1999. This includes minutes from its top executives' meetings and annual international council meetings, oral history interviews, correspondence from its founders, drafts of petitions and campaigns, and reports from its field researchers.