4 ideas
In 1982, 20-year-old Nina Stibbe left Leicester to become nanny to the two sons of Mary-Kay Wilmers, editor of the London Review of Books, at Gloucester Crescent in Camden. Nina recorded the household's arguments about food, books and chores in letters to her sister Victoria, and later published them as a record of literary London seen from the kitchen.
People in service see the private lives of elites without filters because they are treated as part of the household machinery rather than as an audience. Nobody performs for the nanny, so she records literary celebrities as they actually talk: bickering over casseroles, bike repairs and which way to hang a tea towel.
A letter written to a sibling has no public reader in mind, so it keeps verbatim dialogue, half-understood references and trivial detail that a memoir would smooth out. Its value as a document comes from this lack of self-consciousness. The writer captures what happened before she knows what will turn out to matter.
The comedy comes from a newcomer who does not recognise cultural status and so judges famous intellectuals only by what they say and do at the dinner table. Children's blunt remarks and the narrator's plain questions put everyone on the same level. Prestige turns out to depend on an audience that already knows whom to revere.