The book “Wow! Service" was written by Vitaly Antoshchenko, head of the United Consulting Group. This publication is dedicated to the theory and practice of providing high-quality customer service necessary for the successful and productive operation of any organization. The book consists of seven chapters, each of which describes the general principles of the strategy for building an ideal customer-centric company. The author has combined the most valuable facts and terms about the practice of providing services, forming a dictionary of key terms. The reader is offered useful practical advice (including taking into account the experience of foreign companies) on developing professionalism, communicating with clients, and creating a strong and trusting atmosphere in the team. The work was created on the basis of the positive practical experience of the author, which makes it a valuable tool in the work of any professional in the field of sales, service and consulting services.