Children love rocks. Rocks appear in jacket pockets, on windowsills, in the car, in their hiding places, and most often, in their little grips. Rocks are universal - they can be found in all climates, countries, and communities - making themselves available to anyone who craves the tactile pleasure of holding a perfectly sized, unfragile, unowned object. They can be collected, compared, stacked, plunked into water, painted, and shared. This book is an appreciation of their versatility and appeal, paired with the presentation of real types of rocks and their play-worthy attributes. The backmatter provides just enough extra information about each of the rocks included in the book. Written by a children's author and psychotherapist, in partnership with her geologist husband, and illustrated with both warmth and accuracy, this nonfiction ode to rocks will speak to all little hands and hearts.