透彻解析图书馆阅读推广与阅读需求之间的内在关联，是有效开展阅读推广实践的前提。市场需求理论为解析阅读需求的构成、变动与增长规律提供了跨学科分析，进而为理解阅读推广的内在逻辑和实践指向提供了理论依据。图书馆阅读推广的逻辑过程是以增进阅读需求为起点，以促进阅读需求的实际满足为落脚点的往复循环。根据需求理论，读者个体的阅读需求由阅读偏好和阅读“成本”负担能力两方面要素构成，短期内图书馆以降低读者阅读成本的方式提高阅读需求量是有效的，而长期的阅读推广则应着眼于成本以外的其他因素，而且应结合读者、读物阅读需求弹性的不同，制定差异化的推广策略。此外，针对阅读需求绝对不足和结构性不足两类问题，阅读推广也应分别采取需求管理和信息匹配管理两种不同解决路径。

A thorough analysis of the internal relationship between library's reading promotion and reading demands is the premise for effectively carrying out the practice of reading promotion. Market demand theory provides an interdisciplinary analysis for analyzing the composition, change and growth of reading demands, and provides a theoretical basis for understanding the internal logic and practical direction of reading promotion. The logical process of library's reading promotion is based on the promotion of reading demands, and the reciprocating cycle of promoting the actual satisfaction of reading demands. According to the demand theory, the individual reader's reading demands are composed of two factors: reading preference and reading "cost" affordability. In the short run, it is effective for libraries to increase the reading demand by reducing the reader's reading cost, while in the long run, the promotion of reading should focus on factors other than cost, and should be combined with readers. The different elasticity of reading demand formulates differentiated promotion strategies. In addition, in view of the absolute inadequacy of reading demands and structural inadequacy of the whole society, reading promotion should adopt two different solutions of demand management and information matching management.