Princess Polly Im a New Big Sister is a sound book describing the excitement and fun of having a new sibling and becoming a sister. The simple text and colourful illustrations will help little girls understand what happens when a new baby joins the family and how lovely it is to be a big sister.This book is part of Ladybirds successful Pirate Pete and Princess Polly range, and is the perfect companion to Princess Pollys Potty book.