Cambridge Discovery Education Interactive Readers are the next generation of graded readers - captivating topics, high-impact video, and interactive exercises designed to motivate and engage. Shakespeare, Mozart, Madame Curie, Albert Einstein...what do these people have in common? See the world through the eyes of a genius. Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 1513. Lexile reading level: 570L.