I never read children's books when I was a child. I was fortunate later to have friends that would read them to me. A high school friend read me the Winnie the Pooh stories. And in college my girlfriend (now wife) regularly read aloud book after book after book. Some stories are meant to be read aloud, especially "children's" stories.
I listened to the Jungle Book on Audiobooks from the Gutenberg Project--where volunteers narrate public domain books. The version I listened to was narrated by Meredith Hughes. It was like being back in my dorm room on a cool evening, listening to tales I will never forget.
Many of us are familiar with the story of Mowgli, the boy raised by wolves and his friends Balou the Bear and Baghira the Panther, and his feud with Shere Khan the man-eating tiger. The book went into much more detail about Mowgli's difficult return to "civilization" than the Disney cartoon or the recent Disney film (though the older movie was slightly truer to the book). If you don't know the story, treat yourself to a quick read (or to any of the movies). If you have only seen the movies, you owe it to yourself to read the book or, better, to have someone read it to you.
The story stands by itself as a good yarn. But it also reflects on the nature of law (the Law of the Jungle versus the Law of Man) and the virtues of family and clan, honesty, diligence, and effort. There are also lessons about revenge, spite, and duplicity. This is not a one dimensional cant of "nature is good, man bad". There are both noble humans (such as Mowgli and his human mother) and animals. And there are bad animals (Shere Khan and the apes) and humans (the village hunter and priest). In any case, the stories not morality tales. They are engaging and enjoyable.
This volume includes other stories than just those of Mowgli. There is Rikki-tikki-tavi, whom many will recognize as the loyal, courageous little mongoose. There is Kotick, the while seal, who overcomes his people's sloth and skepticism to save them from decimation. These are not cute bedtime stories for children. Rikki is bloody minded and vicious to his cobra foe,. Kotick is red all over in one scene, covered in the blood of the other seals whom he has fought for harem rights. Nonetheless, these are tales that children will enjoy and remember for their entire lives. I also highly recommend these tales to adults, whether they are reading them for the first time or returning to them many years later.