How does the book 'Selling the Invisible' approach the topic of service marketing?

A company can leverage customer insights to improve their marketing strategies by using the feedback and data gathered from customers to objectively evaluate the effectiveness of their current marketing efforts. This can help the company to identify areas of improvement and redefine their services based on customer needs and preferences. It's important to remember that everything a company does is marketing, and customers are a valuable resource in shaping the services being offered.

Some common mistakes companies make when marketing their services include assuming that their current service levels are inadequate, not realizing that everything a company does is marketing, and not utilizing their customers as a valuable resource in better defining and presenting the services being offered.