Digby is a fictional character from the popular children's book series created by Martha Speaks. He is a friendly and curious dog who loves to explore and learn new things. Digby often finds himself in various adventures, helping his friends and solving problems along the way. In the stories, Digby is known for his playful personality and his ability to communicate with children. His adventures often teach valuable lessons about friendship, kindness, and the importance of being curious about the world. The series encourages young readers to engage with their surroundings and develop a love for reading.