Instagram is a valuable piece of social media real estate, and captions play a crucial role in drawing followers in and helping them learn about the value provided by a business or individual. Understanding which types of captions drive different actions and following hard rules such as keeping the caption under 2,200 characters can help maximize engagement. The "ABC's of copywriting" formula - Attention, Benefit, Close - can be applied to create effective captions. Five types of captions that work well for businesses include telling a relatable story, sharing helpful tips and tools, posting thought-provoking memes or quotes, asking simple questions, and providing valuable resources. Effective captions aim to build trust with the audience by solving problems, providing education or entertainment, and encouraging engagement through calls-to-action. By focusing on what their audience can gain from each post, businesses can create a deep connection between themselves and their followers that drives long-term growth.