"The New Baby" is another Little Critter book by Mercer Mayer.
 
Mercer Mayer's Little Critter has a brand-new baby sister in this classic, funny, and heartwarming book that makes for the perfect gift! Whether he's rocking her to sleep, helping change diapers, or pushing the stroller, both parents and children alike will relate to this beloved story.
 
Mercer Mayer's Little Critter stories, which address all the major issues of growing up, are a favorite of parents and children.  This story helps develop social and emotional intelligence, and speaks to the experience of early siblinghood. 
 
Also available in Play Kits for purchase for ages 2-3 years.