The lonely book

"Every morning, when Annie's moms open up their bookshop, there's a pile of books on the counter, waiting for the right reader to come and find them. But one day, there's a book nobody comes for. Nobody ever comes, and each day the book gets lonelier, and the bookshop becomes an unhappy place. . . . Eventually, the book finds the reader who needs it: Annie's sister, Charlotte. Charlotte asks the family to call her Charlie now, and to use 'they/them' pronouns"--Provided by publisher.