"Annie's Day" is a fascinating novel about the mysterious and unpredictable exchange of bodies between two girls who, it would seem, have completely different lives. Due to a miraculous event, they suddenly change bodies and now have to learn to live the life of another person. The author develops the theme of true friendship, self-sacrifice and the ability to adapt to unforeseen circumstances. Readers will submit to this intense and emotional event that will make them think about the true essence of friendship and the importance of being loyal to another. "Annie's Day" is a book that will leave a mark in the heart of everyone who has read it.