For two years, RubEn Gaztambide-FernAndez shared the life of what he calls the "Weston School," an elite New England boarding school. He sat in on classes, ate meals in the dining halls, cheered at sporting events, hung out in dorms while students baked cookies or celebrated birthdays. And through it all, observing the experiences of a diverse group of students, conducting interviews and focus groups, he developed a nuanced portrait of how these students make sense of their extraordinary good fortune in attending the school.

Vividly describing the pastoral landscape and graceful...