"How do you study religion and society? In Studying religion and society, edited by Phil Zuckerman and Titus Hjelm, some of the most famous names in the field explain how they go about their everyday work of studying religions in the field. They explain how the ideas for their projects and books have come together, how their understanding of religion has changed over the years, and how their own beliefs have affected their work."
Among them, French sociologist Jean-Paul Willaime (GSRL) explains, from page 175 to page 185, how he came to study protestantism in a Catholic and Secular context. A must read!