This is the book I kept looking for to give my students! I ended up writing what I wanted them to know & it's full of research, real life experience and my own insights from being a student, parent and teacher. You can find it on Book Depository and Amazon (affiliate link).
This is a quick read! It's a workbook to take you through the different stages of a practice session, and how we as parents can help them develop and make practice a more positive experience. Here is my affiliate link to find it on Amazon.