Girls Write Now’s new partnership fast-tracks efforts to provide underserved young women with professional development and career opportunities. Learning company Houghton Mifflin Harcourt and Girls Write Now is kicking off a pilot internship program at HMH’s New York office. This spring, HMH will host four GWN alumnae—three college students and one recent graduate—for an eight-week rotational internship. Each intern will spend four…