It’s no secret that children love rocks: playing on them, stacking them, even sneaking them home in pockets. This universal curiosity about the world around us is what inspires psychotherapist and author Lisa Varchol Perron when writing books for young readers.While in talks with publishers, an editor asked if she’d be interested in co-authoring a book with her husband, Cecil and Ida Green Professor of Earth, Atmospheric and Planetary Sciences Taylor Perron. The result was the picture book “All the Rocks We Love,” with illustrations by David Scheirer. The book introduces the many…