What do a guitar, a harp, and a piano have in common? They are all strings! This first introduction begins with a simple explanation of what defines a string instrument. Young readers are then invited on a global exploration of a variety of different stringed instruments and are encouraged to find strings of their own in the world around them. Includes a bound-in string to strum, and a visual glossary. Each title in the THIS IS MUSIC series features an interactive novelty musical element that invites the reader to "play" the book!