This is a school textbook which children use to practice reading with. Publication date is 1982/1984. Nearly 200 pages of many easy reader stories. I am not sure what the publisher means by Level 6, this is not Grade 6. It might be a 2nd grade book. One of the stories is Frog and Toad (for your comparison). This is mostly fiction, a little nonfiction and some poetry all mixed together.