Harvard University psychiatrist and author Robert Coles has died. His son, also named Robert Coles, says his father passed away at 97 at a hospice center in Lincoln, Massachusetts, on Thursday. The elder Coles won a Pulitzer Prize in 1973 for a five-volume work documenting the needs of children, particularly those grappling with poverty and segregation. The “Children of Crisis” books came out from 1967 to 1978. The books focused on issues such as the effects of desegregation on children and life among migrant workers and sharecroppers. While many of his books looked at conditions in the U.S., he also studied children around the world. He wrote more than 50 books and hundreds of articles and essays.