"For the last hundred years, Western colonialism has had a bad name." So began Professor Bruce Gilley's watershed academic article "The Case for Colonialism" of 2017. The article sparked a global furor. Critics and defenders of Gilley's argument battled it out in the court of public opinion. The Times of London described Gilley as "probably the academic most likely to be no-platformed in Britain." The New York Times called him one of the "panicky white bros" who "proclaim ever more rowdily that the (white) West was, and is, best" and are "busy recyclers of Western supremacism." In this book, Gilley responds to the critics and elaborates on the case for colonialism. The critics have no evidence for their claims, he asserts. The case for colonialism is robust no matter which colonizer or colonized area one examines. Patient, empirical, humorous, and not a little exasperated by anti-colonial ideologues, Gilley here sets a challenge for the next generation of scholars of colonialism. "It is time to make the case for colonialism again," he writes.