24 books. 6 copies of 6 different books. Includes Butterfly Life Cycle, Frog Life Cycle, Ladybug Life Cycle, Chick Life Cycle, Horse Life Cycle, Sunflower Life Cycle, and Teachers Guide. Each book includes a table of contents, four short chapters, diagrams, maps, captions, a glossary, comprehension questions, and more. Content correlates with Guided Reading levels J-K. Comes with a complete teaching guide.