Turning Bricks Into Jade - David Williams - Bog

The Chinese are fond of using four-character phrases, known as cheng yu, to improve their writing style. The Chinese characters on the cover spell out one such idiom: pao zhuan yin yu. Translated literally, this would be "throw bricks attract jade." It can also express the idea of throwing out something of little value to induce a potential business partner to offer something more valuable.