The book 'Customer Service in Business: Keeping your customers close and loyal' takes the readers through the significance of the customers in businesses and hence the importance that customer service plays in running successful businesses. It chalks out several ways in which the businesses try to keep their customers loyal to their products or services and the methods they employ to ensure this. The businesses rely heavily on retaining their old customers, which is why the customer preferences and likings must be of utmost priority for them. The book also outlines various challenges that arise inn customer service and how one can deal with them.