Shades of Milk and Honey - Mary Robinette Kowal - Bog

Jane Ellsworth and her sister Melody's lives still revolve around vying for the attentions of eligible men. While Jane's skill with glamour is remarkable, it is her sister who is fair of face, and therefore wins the lion's share of the attention. At the ripe old age of twenty-eight, Jane has resigned herself to being invisible forever.