56 books • 25 series
Sonia Sotomayor (L3, Spanish) (National Geographic Readers) (Readers BIOS) (Readers BIOS)
National Geographic Kids Readers: African-American History Makers (Readers BIOS) (Readers BIOS) (Readers)
National Geographic Kids Readers: Walt Disney (National Geographic Kids Readers: Level 3) (Readers BIOS)
National Geographic Kids Readers: Frederick Douglass (Readers BIOS) (National Geographic Kids Readers: Level 2)