Kindergarten pen control training, introductory practice calligraphy, young children's English alphanumeric tracing, red book Evidence has shown that handwriting skills, such as pen control and calligraphy, are critical foundational skills for young children's cognitive and physical development. With our kindergarten pen control training, introductory practice calligraphy 16 books, your child will have the opportunity to strengthen these skills in a fun and engaging way. Give your child the advantage they need in school and beyond.