Daisy's older brother is thrilled when he gets a new sibling. They are best buddies who do everything together. But in kindergarten, things change. His sibling tells him she is a girl and wants to be called Daisy. Daisy's brother must adjust to the change--including what it means for him and their relationship. A powerful, moving picture book based on a true story, My Sister, Daisy handles a sensitive subject with warmth and love.