'Deborah Chen:
1,000,000,000: number of people in the world who live on less than one dollar a day
'Deborah Chen:
Nearly 1,000,000,000 people entered the 21st century unable to read a book or sign their names
'Deborah Chen:
1/2
'Deborah Chen:
behind_the_scenes_1
'Deborah Chen:
behind_the_scenes_2