"[T]his isn't just a story about the nine months of gestation; it's also a tale--told mostly with illustrations--of a family happily awaiting a baby's arrival. As left-hand pages track a zygote's transformation, first into an embryo (there's a tail!) and then into a fetus, right-hand pages show slice-of-life scenes of a mom, dad, and soon-to-be big sister (details in the watercolor and gouache illustrations indicate the family is Latinx). During the third trimester, the left-hand illustrations begin to push onto the right-hand pages, ultimately taking over the entire double-page spread. It's another whimsical touch in this joyful celebration of the nine months leading up to a baby's birth." -- The Horn Book , Starred Review "[T]he real value lies in the blend of informational text and illustrations that will allow kids a concrete sense of the growth covertly occurring in the maternal abdomen. Chin's intrauterine illustrations start oversized . but the little one quickly catches up and art is to scale; then she begins to push across the spread gutters as her size becomes too large to be contained to a single page. The result is a solid family discussion starter about a possible new addition to the family that allows a listening kid to take the questions in a medical or emotional direction or both, and fascinated youngsters will pore over the growth scenes and be stunned by the information that they, too, started that way.

"-- Bulletin of the Center for Children's Books "This touching book describes milestones both inside and outside of a mother's belly over the course of nine months. Children both young and old will be captivated by the details of fetal development and the story of a family preparing for and welcoming a new member."-- Kirkus Reviews, Starred Review "It's a riveting chronicle, full of wonderment and the kind of information that will allow even very young prospective brothers and sisters to track the progress of their own forthcoming siblings."-- The Wall Street Journal "Caldecott Honoree Chin's detailed gouache and watercolor illustrations skillfully depict the changes in the fetus month to month, they also show the family of three and their activities. Verso pages have drawings of the fetus developing while the recto pages show the family's movements as they wait and prepare for the new infant. Pictures of Month Four through Month Nine reveal the actual size of the growing baby, while the illustrations of the first three months tell what the size would be and show a magnified illustration." -- Booklist , Starred Review "This appealing treatment of the subject strikes a perfect balance between biology--minus the birds and bees--and a gentle relevancy for young, soon-to-be siblings." -- Publishers Weekly, Starred Review "A bright, savvy heads-up for younger children in growing families; equally useful for shaping expectations and providing realistic glimpses of what's going on inside a pregnant person.

" -- School Library Journal " Nine Months is a beautifully balanced celebration and explanation of how babies develop in utero, and how families prepare, just right for siblings-to-be and their parents." --Shelf Awareness.