Xi 'an Giant Book Culture Communication Co., Ltd. belongs to Beijing Rong De Education Science and Technology Group, and is an enterprise specializing in the planning, editing and distribution of supplementary books. The series of textbooks edited by Rong, such as teaching AIDS, teaching points, analysis, coach training, good reading, good volume and good grades, have become the best-selling brand books in China market. The company pays well, and it is a single break.