I received a free kindle copy of Gravity (Adventures of Eyemonster and friends Book 6) by Tatyana Fagerjord in an Amazon promotion.
I gave this cleverly illustrated children's story five stars.
Furmonster & Eyemonster wanted to get apples from a large tree with many ripe apples. Smarty came along to help. It's written for ages four to nine.
It explains the difficult concept of gravity in clear, understandable English. My favorite little boy enjoyed the cute drawings in this story & wanted me to read it over again.