Triangle, , Candlewick Press, Mac Barnett,Children’s / Teenage fiction: General, modern and contemporary fiction,Children’s / Teenage fiction and true stories, Apple TV+;Shape Island;friendship;children's book;picture book;shapes;triangle;square;humor;funny story;prank;practical joke;jon klassen;mac barnett;home;chasing;running away;shapes book;funny books;books for 9 year old girls;books for 8 year old boys;kids books ages 6-8;books for 4 year olds;friends;books for 8 year old girls;books for 6 year old boys;funny gifts;books for 5 year old boys;books for 7 year old boys;books for 7 year old girls;books for 6 year old girls;books for 5 year olds,, The Shapes Trilogy, United States, en-UShttps://www.penguinrandomhouse.comApple TV+;Shape Island;friendship;children's book;picture book;shapes;triangle;square;humor;funny story;prank;practical joke;jon klassen;mac barnett;home;chasing;running away;shapes book;funny books;books for 9 year old girls;books for 8 year old boys;kids books ages 6-8;books for 4 year olds;friends;books for 8 year old girls;books for 6 year old boys;funny gifts;books for 5 year old boys;books for 7 year old boys;books for 7 year old girls;books for 6 year old girls;books for 5 year olds, [BLURB],[CITY],,books, ebooks, biblet, Book2look