
When Laura discovers that the unpopular boy living next door to her has the ability to go into the fourth dimension, she makes the dangerous decision to accompany him on his journeys there.
https://en.wikipedia.org/wiki/The_Boy_Who_Reversed_Himself
This book covers all sorts of situations about objects in fewer and additional dimensions.
https://www.amazon.com/Boy-Who-Reversed-Himself/dp/014038965...
Pair it up with 4 D toys on ios: https://apps.apple.com/us/app/4d-toys/id1143791442
For the younger audience, e.g. 6-9, I suggest the Math Adventures books, e.g. Sir Cumference and the Isle of Immeter, which are illustrated and introduce mathematical concepts in a fun and subtle way.
