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. Sitting in traffic, finding a parking spot, paying for a parking spot...is it worth it? Traffic is a big problem in our cities. Can you think of some solutions? Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 1490. Lexile Reading Level: 620L.