CHAPTER 4. You must read chapter 4 of the unit under study, once the reading is done, proceed to create your summary. The abstract should contain the following chapter topics: * To understand a system. * Social culture and cultural diversity. * The values of social culture. * Organizational culture and its characteristics. * Communication and culture change. Each of the above topics must be summarized with its own criteria and taking theory as a reference, each topic must contain a minimum length of 300 words, must present a title for the abstract and must be related to the theory. Presents bibliographic references. Book reference: Unidad Didctica: Newstrom, J. (2011). Human Behavior at Work. Mexico: Mc Graw-Hill Interamericana Editores S.A..