Nick Hornby extols these charming letters in his wonderful (but, it seems, suspended-again) book column in The Believer. Thirty years back, Nina Stibbe was a nanny for a literary London family. She was fresh from Leicestershire and wrote frequent letters to her sister Vic, letters collected here. Claire Tomalin and Michael Frayn live down the way, Alan Bennett lives across the way and drops in to dinner just about every night. Nina’s charges, Sam and Will, seem intelligent and rather witty.