Check out these resources to learn what a #BookSnap is & how to create one. For evidence, fully explain #BookSnaps as best you can.
http://www.tarammartin.com/resources/booksnaps-how-to-videos/
http://daveburgess.com/booksnaps/
https://iteachwithipads.net/2017/09/13/snap-to-it-with-booksnaps/