Few people get to meet their dogs on the dog's actual first birthday. Most of us missed the day our puppy opened her eyes, the first sweet sounds she made, or watching her learn to walk, bark, and play with her siblings. But the dog scientist Alexandra Horowitz got to. She met a litter of newborn pups, and traces their journey through their first year of life.

In this adaptation for young readers, follow along as one of the litter, Quiddity, grows from a sweet potato-sized puppy who can't lift her head to a member of Horowitz's family. Equal parts scientific and adventurous, Alexandra Horowitz's delightful study of her own puppy's developing personality is an enticing read that will answer every question a reader could have during a puppy's first year.