Business consultants note that modern human resource management is guided by several overriding principles. Perhaps the paramount principle is a simple recognition that human resources are the most important assets of an organization; a business cannot be successful without effectively managing this resource. Another important principle, articulated by Michael Armstrong in his book A Handbook of Human Resource Management, is that business success "is most likely to be achieved if the personnel policies and procedures of the enterprise are closely linked with, and make a major contribution to, the achievement of corporate objectives and strategic plans."