It is a book series inspired by kids and for kids!
Kids learn about new and interesting facts so that a combination of both the curious and the new materials and facts together with the visual aspect of the pictures.
Children are entertained with the coolness factor of the discovery book plus they learn some new and a little bit harder to retain facts simultaneously with the cool stuff and this is how the child is going to retain all of the information. The discovery books work in synchronization with the brain and not against the brain like some dull textbooks try to teach things.
It is a fact that kids just love these discovery picture books about weird animals and weird stuff that the animals are doing because they love the coolness and grooviness factor of the books. Parents are super satisfied because their children show interest for things on a higher level of interest as usual.