The preface or postscript of a collection of essays is usually a summary, evaluation, and review of the work before or after publication. It can express respect for the author, summarize the theme and style of the work, and summarize the purpose and significance of the publication. Here are some writing suggestions: 1. To express respect: express respect for the author in the foreword or afterword, thanking the author for his creation and support. You can quote the author's name, the title of the work, the publication date, and other information. You can also summarize their contributions and achievements. 2. Give a brief summary of the theme and style of the work: In the foreword or afterword, give a brief summary of the theme and style of the work so that the reader can understand the background and characteristics of the work. You can briefly introduce the background, purpose, theme, style, and structure of the work. 3. Evaluation and review: In the foreword or afterword, you evaluate and review the work to express your understanding and evaluation of the work. You can give a brief review of the work and point of view. You can also quote some comments from experts or readers. 4. The purpose and significance of the publication: summarize the purpose and significance of the publication in the foreword or afterword, and introduce the background and significance of the publication of the work. It could introduce the influence and significance of the work, and it could also foresee the influence and enlightenment of the readers. When writing a foreword or postscript, you should pay attention to concise language and emphasize the key points. Don't quote too much information and details so that the reader can quickly understand and understand the work. At the same time, he had to pay attention to the specifications of the typography and format to keep the style fresh, rigorous, and standardized.