LitCharts assigns a color and icon to each theme in The Guernsey Literary and Potato Peel Pie Society, which you can use to track the themes throughout the work.
Literature and Connection
Family, Parenting, and Legitimacy
War, Hunger, and Humanity
Women, Marriage, and Work
Summary
Analysis
Juliet thanks Sidney: his new secretary, Billee Bee Jones, sent two books of paper dolls for Kit, as well as a pair of child's scissors. Juliet expresses hope that Billee Bee is plump and motherly, as she seems very kind. In a postscript, Juliet points out that she hasn't written about Dawsey in this letter.
Billee Bee seems to know something about parenting and children, given her inclusion of scissors. This sets her up to be a resource for Juliet as she begins to figure out how to care for Kit.