Smile, Lily! by Candace Fleming is a gentle picture book that explores the universal experience of a crying baby and a family's loving attempts to soothe them. The story centers on baby Lily, whose cries are a mystery to her well-meaning family elders. Each family member tries a different approach, from singing to rocking, but nothing seems to work. It is Lily's observant little brother who, through quiet attention and a special understanding, discovers the unique way to bring a smile to her face. This book handles the common challenge of a fussy baby with warmth and a touch of humor, normalizing the fact that babies cry and that finding their comfort can be a puzzle. The emotional arc moves from initial frustration and concern to a heartwarming resolution of connection and joy. It's particularly suited for families welcoming a new baby, or for older siblings who might be struggling to understand or connect with an infant. Parents might reach for this book to prepare a child for a new sibling, to encourage empathy, or simply to share a sweet story about family love. Younger children (ages 3-5) will relate to the baby's big feelings and the family's efforts, while slightly older children (ages 5-7) can appreciate the little brother's ingenuity and the power of observation and empathy. What sets this book apart is its focus on the sibling bond as the key to comfort, highlighting that sometimes the simplest, most intuitive connection can be the most effective. It's a lovely read-aloud that provides comfort and opens conversations about family roles and understanding others' needs.