Christina Castle is a brand that offers a series of clever children's books called The Food ABC. These books aim to impart valuable lessons about health, happiness, and friendship to primary school children in a fun and engaging way. The main character, Adrian the Apple, along with his band of friends, teaches children about the importance of a healthy and happy lifestyle.

What makes these books unique is that they use cartoon characters associated with different foods to encourage children to eat the rainbow. By focusing on relatable life lessons, such as tidying their rooms, staying off digital devices, and getting a good night's sleep, the books teach positive values that modern-day kids can understand. Each story in The Food ABC series is fronted by a character who is a healthy whole food, like carrots, zucchinis, and mushrooms, making them likable and fun for children.

These fun and engaging books are designed to naturally inspire a healthy appetite in young readers. The series encompasses 10 titles, with more on the way, and can be purchased individually or as a box set. Suitable for children aged 4 to 7 years old, these books are not just entertaining but also impart important life lessons in a relatable and colorful way