In Jack's book series, Jack writes about learning and creating new things. In Jack's Imagination, he writes about the sports he is learning, how to play safely, and learning the rules to play fair. Jack also learns about art and how to create different forms of art. The series is aimed at encouraging, challenging young minds, and motivating them to remain active, both physically and mentally. Recommended for children 4 to 8. Also Coming Soon: Jack Goes on Safari, Jack Goes Camping, Jack Goes to School, Jack Goes to a Farm, Jack's Pets, Jack Cooks. If you have a sister, tell her about the Jillian Book Series: Jillian's Imagination, and coming soon, in the Jillian series: Jillian Goes on Safari, Jillian Goes Camping, Jillian Goes to School, Jillian Goes to a Farm, Jillian's Pets, Jillian Cooks.