Marthe Jocelyn’s ability to present important-to-learn concepts to the very young has garnered accolades from around the world. Ones and Twos is her first book collaboration with her nineteen-year-old art student daughter, Nell, and, together, they explore numeracy, sorting, and pairing. Each brightly illustrated page invites children to identify familiar objects ranging from kites to socks, from one nest to the two birds sitting in it. Ones and Twos gives little toddlers and their caregivers much to discuss and to enjoy together, and it introduces an exciting new creative team.