These readers in American English feature the characters and follow the syllabus of the "Let's Go" series, but can also be used independently. There are two stories per reader and each one recycles language from the student's book in a different context. Word counts increase per story and per level for a gradual build-up of reading skills. The stories are illustrated in colour, aiming to engage children's attention and help comprehension. New words (not in the student's book) are featured in a convenient, on-the-page picture dictionary. Comprehension questions at the end of each story reinforce grammar and skills development. An answer key for both stories is provided at the end of the book.