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Saladin, Sultan of Egypt and Syria, 1137-1193 -- Juvenile literature Saladin, Sultan of Egypt and Syria, 1137-1193 Crusades -- Juvenile literature Kings, queens, rulers, etc. -- Biography Crusades

Leonardo, da Vinci, 1452-1519 Artists -- Italy -- Biography Scientists -- Italy -- Biography

Oakley, Annie, 1860-1926 -- Juvenile literature Shooters of firearms -- United States -- Biography -- Pictorial works -- Juvenile literature Entertainers -- United States -- Biography -- Pictorial works -- Juvenile literature

Protzman, Ferdinand Working class -- Portraits Portrait photography

Women -- Social life and customs -- Cross-cultural studies Women -- Social life and customs -- Pictorial works

Bell, Alexander Graham, 1847-1922 Bell, Alexander Graham, 1847-1922 -- Juvenile literature Bell, Alexander Graham, 1847-1922 -- Portraits -- Juvenile literature Inventors -- United States -- Biography -- Juvenile literature

Princesses -- Egypt -- Juvenile literature Egypt -- Social life and customs -- Juvenile literature

Vaccines -- Juvenile literature Vaccines -- History -- Juvenile literature

Nuclear physics -- Juvenile literature Nuclear energy -- Juvenile literature

DNA -- Juvenile literature DNA -- Research -- History -- Juvenile literature Molecular biology -- History -- Juvenile literature