Poster 18 of a set of 23 posters, part of the Five Year plan to popularize legal knowledge (October 1986). The individual posters discuss various major laws, including the Constitution, Penal Code, Criminal Procedure Law, Marriage Law, etc.
The poster further explains the "Economic Contract Law of the PRC" (中华人民共和国经济合同法), in particular "Economic contracts can be changed and terminated" (经济合同可以变更和解除) (left); and "Liability for breach of economic contract" (违反经济合同的责任) (right). Below right is a small section about "Mediation, arbitration and management of economic contracts" (经济合同的调解仲裁和管理).