I read this book because I am a fan of P.G.Wodehouse, and was interested to read about what happened during the war years when he was in Germany, and to get the first-hand account from one of the family with whom he was staying.
As well as giving some insight into what P.G.Wodehouse was like, it is also an insight into the Second World War - how many hated Hitler at the time, but had to watch every word - and also the author's struggles at the end of the war, following the loss of her home and the lack of food in post-war Berlin.