"My Brother is an Avocado" is a humorous and heartwarming picture book that entertainingly depicts the exciting journey of a baby's growth. The story follows a little girl who is eagerly anticipating the arrival of her new sibling. While she waits, her father describes the various sizes of the baby, starting from a tiny poppy seed to a huge watermelon. This imaginative narrative sparks the imagination and shows how the girl looks forward to the different developmental stages of her brother, even though she is not quite sure how she feels about having an avocado or an onion as a sibling. With a charming twist at the end, the book offers a playful perspective on waiting for a new family member and the emotions that come with it.