Princess Polly I'm a New Big Sister is part of Ladybird's successful Pirate Pete and Princess Polly range - introducing children to key milestones in a fun and reassuring way. This Ladybird sound book describes the excitement and fun of having a new sibling. The simple text and colourful illustrations will help little ones understand what happens when a new baby joins the family and how lovely it is to be an older sibling.

Pressing the sound button each time to hear the baby giggle is also a great way to encourage young children to help out and play with the new baby, and reward their good behaviour. Other titles in the series include Pirate Pete's Potty, Princess Polly's Potty and Pirate Pete and Princess Polly Please and Thank You.