There's nobody in the world as messy as Sophie. Just ask her older sister Olivia, who is, of course, perfectly neat. When Olivia opens the door to Sophie's room, it's hard to find her amid all the stuff on the floor and spilling out of Sophie's drawers and closet. And it's not just in her room that Sophie is messy. It's at school, on Halloween, and even when she makes breakfast in bed for her mother on Mother's Day.Listen to Olivia. She's an older sister and she knows: Sophie is not just messy. She is super-completely and totally the MESSIEST. Oh...there are some good things about Sophie, too. She's kind and nice and funny and great at puzzles and dancing. But Olivia is willing to bet her best bracelet that Sophie will never be practically perfect, like her.Judith Viorst's totally messy Sophie and oh-so-virtuous Olivia will speak to slobs and neatniks alike. Robin Preiss Glasser's wonderful drawings, full of delicious details, bring both of these sisters to vibrant life.

Judith Viorst is the author of the beloved Alexander and the Terrible, Horrible, No Good, Very Bad Day, which has sold some four million copies; the Lulu books, including Lulu and the Brontosaurus; the New York Times bestseller Necessary Losses; four musicals; and poetry for children and young adults. Her most recent books of poetry include What Are You Glad About? What Are You Mad About? and Nearing Ninety.

Robin Preiss Glasser is the #1 New York Times bestselling illustrator of the Fancy Nancy series, written by Jane O’Connor; America: A Patriotic Primer, A Is for Abigail, and Our Fifty States by Lynne Cheney; and Tea for Ruby by Sarah Ferguson, the Duchess of York. She lives in Southern California with her family.