 This study found that libraries should focus their efforts on posting videos related to reading promotion, as these tend to receive more views than other topics. Additionally, it was discovered that the number of fans of an account is positively correlated with the number of likes, suggesting that having a larger fan base can lead to greater engagement from viewers. Furthermore, the study showed that hot topics and knowledge quizzes were the most popular topics for patrons, indicating that libraries should consider incorporating these types of content into their short-form video campaigns. This article was authored by Ng Lu, Dixon K W Chi U, and Kevin K W Ho.