This entire series tells the story of a group of culturally diverse five year old children who are bonded in friendship. They're on a mysterious island shaped like a left hand. As they explore different parts of the island, they see different parts of the world, with its unique wildlife. Some footnotes are added for greater insight. And all the songs carry a cadence with commas to help you make up a tune. Speaking quotes are in various colours so you can put on a voice. Book 2, Thumb Peninsula South, captures iconic animals and landscapes found in the United States, with a mythical twist ending.

The books are intended to be read to non-readers, but they are so captivating, that they appeal to young readers as well. The books are designed to be as much fun to read as to listen to, with appealing story line, rhyming cadence and songs.