This knitting pattern is included as a part of the children’s storybook, Phoebe’s Sweater. Phoebe’s Sweater is a knitting picture book that tells the story of Phoebe Mouse and her journey to big sisterhood. The story and the patterns are written and designed by Joanna Johnson and illustrated by her husband, Eric. The book also includes the pattern for Phoebe’s Sweater and for Phoebe Mouse. Phoebe’s Sweater is published by Joanna’s independent publishing company, Slate Falls Press, and is available at yarn shops, at Joanna’s etsy shop, and on Amazon.com.