Inventions & Discoveries (Collection of 6 Books): Knowledge Encyclopedia For Children Paperback – October 25, 2020

Good read and value

My son greedily read through the entire book as soon as he got it. It was a perfect gift for learning.

Wasn't what I was expecting, but still fun information for kids and family time reading.

What age group are these books for?? I gave it three stars only because they look interesting but there's no age level given.