Author and sociologist Raúl Pérez attended a diverse university in California that promoted mutual respect among students, “yet after hours, in the dorms, I saw many boundaries tested with racial humor.” “We were sociology majors, we were taking ethnic studies courses,” Pérez said, “and here we were in an environment where people were free to make racist and offensive jokes.” Convinced that there was more behind such experiences than “just jokes,” Pérez embarked on academic research on the intersection between humor, race, power and inequality. Now he has released his first book, “The Souls of White Jokes,” which aims to...