Orel Protopopescu (Protopopescu, Orel)

English

• 
  Metaphors and Similes. . You Can Eat
  by Orel Protopopescu
  Softcover, Scholastic, Incorporated, ISBN 0439445116 (0-439-44511-6)
• 
  The Perilous Pit
  by Orel O. Protopopescu, Jacqueline Chwast
  Hardcover, Simon & Schuster Children's Publishing, ISBN 0671769103 (0-671-76910-3)
• 
  Two Sticks
  by Anne Wilsdorf, Orel Protopopescu
  Hardcover, Farrar, Straus & Giroux, ISBN 0374380228 (0-374-38022-8)

Chinese

• 
  A Thousand Peaks: Poems from China
  by Siyu Liu, Orel O. Protopopescu
  Hardcover, Pacific View Press, ISBN 1881896242 (1-881896-24-2)