Concerned about how much screen time your child is getting?  Here is a well-researched and informative book that is a must read for all parents in this digital age. Become a better informed parent and read this book.
 
Disconnected: How To Reconnect Our Digitally Distracted Kids By Tom Kertsing
 
https://www.amazon.com/Disconnected-Reconnect-Digitally-Distracted-Kids-ebook/dp/B01M71WZDA/ref=cm_cr_arp_d_product_top?ie=UTF8