Third Party authority, you can influence your customer by telling them that an authority said something about the topic. And by using the power of the third party authority, you can build trust with your customers and influence the thoughts and behaviors. And you can use sentences such as experts agree that studies have shown, research has shown. Experts name said that, for example, if it's true that you can say that studies have shown that by using a standing desk, it resists it reduced back pain by 50%. So let's assume that you sell standing desk, it's something that you can use and that could really influence your customers to buy