The product is a lot of 65 Houghton Mifflin Leveled Readers Level 3 from the year 2004. These paperback books are designed for 3rd-grade students and focus on reading, writing, and comprehension skills. Published by Houghton Mifflin in the United States, the books feature different levels of difficulty with focus questions for teachers and students to engage with. With various authors contributing to the content, these leveled readers provide a comprehensive educational resource for students to improve their literacy skills. Books are from units 1-6. There are no duplicate books in the set. All books are in very nice, used condition. Multiple sets are available.