Girls of slender means

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…that she can survive in the harsh, modern world no matter what. And, in fact, she did survived and became a women columnist later. In my opinion, Jane Wright and Joanna Childe were the most interesting characters in the book. Although they lived in the same time (after the second world war) and in the same place, they had different lifestyles. The only similarity between them was that they were using books for their occupations.