生物学中通常把生物从无生命到有生命、从低级到高级、从简单到复杂的逐步演变过程称为“进化”。尽管在印刷业诞生的“按需出版”不属于生物的范围,但也经历了这样一个成长、变化和发展的“进化”历程。回顾整个历程,按需出版的起源、发展和未来都是顺应市场发展规律的必然。 Biology usually life from biological to life, from low to high, from simple to complex step by step evolution is called “evolution ”. Although the “on-demand publishing” born in the printing industry does not fall into the scope of biology, it has undergone such an “evolutionary” course of growth, change and development. Looking back at the whole process, the origin, development and future of on-demand publishing are all necessary to conform to the law of market development.