The book "How Katie Changed" written by Susan Coolidge tells the story of a girl named Katie Carr, who lives with her family in a small town. Katie is a cheerful, energetic and independent girl who dreams of adventures and big changes in her life. However, after an accident, she is overcome with excitement, and she is forced to change her attitude towards life. Readers empathize and empathize with Kathy as she watches her inner transformation and learns important life lessons about self-belief and the importance of family ties. This book is full of deep knowledge, inspiration and imbued with warmth that will remain in the heart of everyone who reads it.