Title: Meiguo hou hei xue
Description: Ben shu zhong xin jie shi " hou hei xue " de yi yi, jie shao le zai jing zheng ji lie de she hui zhong, ru he fa hui qian neng, yi xiao sheng da, zhuan ruo wei qiang.
Subjects: Success, Yan jiu, Self-preservation, Success in business, Psychological aspects, Lun li xue
Places: mei guo