序言,是应用写作中的一个文种。它的主要作用是介绍、推荐著作,引导、帮助读者更好地理解著作的主要内容和精神实质,认识著作的意义和价值,以求提高阅读效率,扩大著作的社会效益。它通常放在著作(含作品)的正文的前面。按照作者和内容的不同,序言可分为自序、他序和代序三种。自序是编著者自己作序。应用文体著作和文学作品的自序内容有较大的差异。前者的自序内 Preface, is a type of writing in the application. Its main function is to introduce, recommend books, guide, help readers to better understand the main content of the book and spiritual essence, understanding of the meaning and value of the book, in order to improve reading efficiency and expand the social benefits of the book. It is usually placed in front of the body of the book (including works). According to the author and the different contents, the preface can be divided into self-preface, his preface and preface three kinds. Preface is edited by the author himself. There is a big difference in the content of the self-introduction of stylistic works and literary works. The former self order