The book, The One and Only Ivan, is based on a true story of a gorilla. Ivan is a silverback gorilla who spent 27 years of his life living at the Big Top Mall, which is a circus themed mall. Ivan was secluded from other animals of his own kind, and shared his years at the mall with other circus animals. The pivotal moment in the story comes when one of the animals experiences tragedy. This event changes Ivan's perspective, and his mission becomes fulfilling a promise. Will Ivan ever leave the Big Top Mall? Will he ever be reunited with other gorillas? Find the answers to these questions when you read, The One and Only Ivan! A story that pulls at your heart strings, but also keeps you laughing hysterically.