Because the topic is the face of the paper, the first thing readers see is the topic of the paper, so this topic is too important to help readers grasp the core.

Secondly, the topic is something to help readers grasp the core content of the article in a short time, so not only should there be a topic, but also let readers know the core of the paper after reading it.

Finally, the title of the paper plays the role of the finishing touch, is the soul of the full text, and is also the key to measure whether the paper is off topic.

A complete paper should include title, abstract, keywords, paper content and references.

Among them, the theme is a necessary part of the paper. It requires concise and appropriate phrases to reflect the specific content of the article and clearly tell readers the theme of the paper, which has the function of making the finishing point and stimulating readers' interest.

Generally speaking, the topic should include the main keywords of the article. The title is like a label, so it is forbidden to describe the content of the paper point by point with long and complete sentences of subject-predicate-object structure to ensure "conciseness"; The requirement of "appropriateness" should be reflected in pertinence, conspicuity and readability.

Of course, we should also avoid the so-called brevity and lack of retrievability that are too general or grandstanding, so that the name does not match the reality or cannot reflect the characteristics of each article. The title should be short, not very long, generally not more than 20 Chinese characters.

Of course, some papers will have subtitles, and the role of subtitles is to supplement the title and full text of the paper. Generally, the subtitle is written on the line below the topic, but the subtitle is not necessary for the paper and can only be used under certain circumstances.

Thesis topics with subheadings mainly include: main/general topics, dashes and subheadings. The topic title and subtitle are divided into two lines, aligned in the center, and a dash is added in front of the subtitle, which is one size smaller than the topic title.

Academic journals generally limit the number of words in the main title of an article, but there is no clear limit on the number of words in the subtitle. However, the subtitle should avoid using tedious adjectives and unnecessary function words, and should not use abstract, empty or uncommon and fabricated words to avoid confusing readers.