Educational Value: This book focuses on brain development and is packed with information especially useful for children's learning. It deepens knowledge of the solar system and stars, sparking an interest in science. CD Usage: The included CD contains audio to support learning, making it an effective learning tool that engages both sight and hearing. It's designed to be fun and engaging for children. Series Features: The Shichida Method series is based on a unique educational method and features various approaches to promote brain development. It's content that parents and children can enjoy together. - Title: Brain Development - Series: Shichida Method - Accessories: CD Please understand that this is a used item. #ShichidaMethod Thank you for looking.