Rejected Covers is an ongoing series for which artists reveal their inspirations and unused design ideas for popular titles. Below, Nayon Cho, Senior Designer at Penguin, discusses the process of designing the cover for the latest novel by Mo Yan, a Chinese Nobel Prize winner. Yan's latest book explores the country's family planning policy through the eyes of a zealous midwife. Frog is a beautifully written, harrowing novel about life in one Chinese village, that starts before Mao's Cultural Revolution and ends in the present day.