By EDITH M. LEDERER 07/12/13 12:12 AM ET EDT 
UNITED NATIONS -- A new report released to mark the 16th birthday of a Pakistani teenager shot by the Taliban for promoting education for girls says 57 million children around the world are not going to school, and half live in conflict-affected countries.
The U.N. education and cultural agency UNESCO and Save the Children released the study ahead of Friday's first public appearance at the United Nations by Malala Yousafzai, who returned to school in March after medical treatment in Britain for injuries she suffered in the October attack.
She will address more than 500 young leaders from around the world at a Youth Assembly organized by General Assembly President Vuk Jeremic and U.N. special envoy for global education Gordon Brown, the former British prime minister.
