Migrant Woman (1936) might be Dorothea Lange’s most iconic work, but her photographs on assignment documenting Japanese American internment during World War II were so powerful that the U.S.

New collections by Gordon Parks, Platon, Peter van Agtmael and Myriam Boulos reveal when you need to tell as well as show. By Arthur Lubow The 900 items from his Atlanta home include blue-chip art by ...