Mac Barnett is a New York Times Bestselling author of children's books. He is a rising star in the literary industry and the program director of 826 LA, a non-profit organization dedicated to supporting students with their creative and expository writing skills. Mac's books have won many prizes and have sold over three million copies worldwide. He is well—known for his popular series including The Terrible Two, Jack Book Series, and the Kid Spy Series. Barnett's other popular books include A Polar Bear in the Snow, Triangle, Extra Yarn, and The Three Billy Goats Gruff.

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Title: ¿Cómo baja Papá Noel por la chimenea?, Author: Mac Barnett
Title: Veinte preguntas, Author: Mac Barnett Pre-Order Now
Title: Triángulo, Author: Mac Barnett
Title: Hilo sin fin (Extra Yarn), Author: Mac Barnett
Title: El Primer gato en el espacio y el caldito maldito / The First cat in space and the cursed broth, Author: Mac Barnett Pre-Order Now
Title: Círculo, Author: Mac Barnett
Title: Cuadrado, Author: Mac Barnett