From the New York Times bestselling duo of award-winning author Ann Patchett and Fancy Nancy illustrator Robin Preiss Glasser comes an empathetic story about introverts and extroverts, and two siblings who learn to be themselves.The Vert family is celebrating a very special occasion: it's Ivan's birthday! And Estie knows that every birthday needs a great party, with lots of guests, party hats, and twinkling tin foil stars. Because that is what everyone wants on their birthday, right? But did Estie ever ask Ivan? From the New York Times bestselling duo of Escape Goat and Lambslide, award-winning author Ann Patchett and Fancy Nancy artist Robin Preiss Glasser, comes a heartfelt story about honoring our differences.