Thanks to highly anticipated movies that opened July 21, fashion doll Barbie and Manhattan Project leader J. Robert Oppenheimer are sharing a surprising cultural moment. In two blog posts, Neely Tucker highlighted the Library of Congress’s Geppi Collection, which includes a number of Barbie dolls, comic books, and accessories, and the more than 76,500 items related to Oppenheimer held by the Manuscript Division. He writes that the Oppenheimer collection is “a stunningly complete and intellectually dizzying collection” that includes more than 70 boxes of research files compiled by Martin J. Sherwin for the Pulitzer Prize–winning biography he wrote with Kai Bird.