We live in an era where every company is expected to operate as a media company and every business executive is expected to produce thought leadership content. Newsletters and blogs have become crucial mediums for establishing longterm relationships with customers, and you've probably noticed that your LinkedIn feed has been flooded with posts from CEOs and startup founders who want to share their expertise.

But what happens when those CEOs don't have the time or the writing expertise needed to produce compelling content? They often turn to ghostwriters: trained journalists who are able to quickly distill executives' thoughts into shareable copy. These ghostwriters often work behind the scenes – in fact most people barely know they exist – and they can often make much more money than your average journalist.

But how do you break into ghostwriting when they're effectively invisible, and what's the best way to work with clients? To answer this question, I assembled a panel of ghostwriting experts to share their experience from building their businesses.