The cover picture must highlight the main body, whether it is real shot or text.

Try to enlarge the theme so that people can know the key points at a glance.

2. The cover font should be concise and clear, and try not to exceed 15.

Don't turn the cover font into a subtitle. Summarize the highlights not mentioned in the topic directly, and highlight the core keywords with bright colors.

Contrast the colors of fonts and pictures clearly, and don't be confused.

3. Pay attention to the copyright of pictures and fonts

Similar to the PS text on this picture, you need to pay attention to the copyright of the picture and font.

Try to choose copyright-free ones. It is safe to use.

4. The pictures should be clear, and blurred photos will affect the recommendation.

The cover must not be blurred, blurred pictures will reduce the recommended amount, and there must be no black edges.