Authors need to know more than what kind of content to share on Instagram. When used correctly, hashtags can help authors connect with new readers and grow a massive audience on Instagram. Hashtags are how people find things that they are looking for on Instagram. It's also a fantastic way for you to connect with readers you might not have discovered otherwise.
More often than not, when I see authors struggling with Instagram, they are not using Hashtags or they aren't using them correctly.