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 recounts for Sidney the experience of having the handwriting expert come visit Isola. With much pomp and circumstance, the man declared the letters the work of Oscar Wilde. Isola yelled with joy and hugged the man. She then took him to test out a motorcycle and got a ticket for reckless driving.
The shift away from the war and towards these fun letters again shows that Guernsey is recovering from the war—notably, through these happy stories and coincidences.