The Sound Books series is a picture book collection designed to visually represent musical concepts for young learners. Its original artwork is created and arranged to clearly depict sound ideas with few or no words required. The unique approach encourages students to bring together visual and aural imagery and creativity in an exploration of vocal and instrumental skill building and conceptual musical understanding. Designed for interactive use between parents and children, teachers and students, each book focuses on a particular skill and/or concept area and provides strategies for effective use. Layers of Sound is the fourth publication in the series and focuses on musical texture - the layers of sound that combine to make musical compositions. Through a range of images, which begin as single lines and develop into more complex layers that begin, end, and move together or independently, learners are encouraged to explore connections between the images and create musical lines to work with them.