The effectiveness of advertising on a product and a personAdvertising is the most visible and large-scale campaign among all marketing activities. This is why many researchers and business leaders are interested in studying advertising performance. Much research demonstrates that there is a relationship between advertising and company performance, with advertising functioning as a communication channel for companies to communicate between investors and consumers, which has a positive impact on wealth of the company's shareholders (Conchar, Crask and Zinkhan, 2005). Advertising is one of the ways to promote products and enhance the company's image. Information and messages can be conveyed to the public through advertising, which can further build brand awareness, brand name, brand recognition and reputation of the brand or product. Furthermore, the company's background, information and future plans can be disclosed appropriately and accurately, which can be considered a good positive indicator of the company's future performance for investors (Kim and Morris , 2003). Thus, the product promoted by advertising can obtain greater visibility compared to its competitors, which results in a higher market price and better performance. Some research has indicated that advertising spending can be considered a business investment because advertising can bring profits to the business by increasing sales. The causal relationship between advertising and sales has been highlighted in many studies. Under ideal conditions, if we spend one dollar on advertising, we can make at least three dollars in sales as a result of advertising (Broadbent, 1997). This absolute advantage can help the company obtain a...... middle of paper ......ss promotion. Therefore, the attractiveness of advertising and its ability to attract people's attention is very important. Eysenck (1984) pointed out that greater attention to advertising can give audiences a deeper memory of the information. He also mentioned that gaining public attention can have advantages or disadvantages. This can be a positive impact of persuasion, or it can also be a negative impact of persuasion. This may depend on the public's attitude towards related advertisements, the evidence supported by the advertisements, propaganda methods and other factors. Therefore, one of the most important questions of this research project is whether instructional advertising can attract the attention of investors, mainly Hong Kong high school students, to attract them to take tutorials...