"Roberts addresses the subjects that are troubling professionals across the globe, providing a sound theoretical base on which a professional viewpoint can be formed. Complex concepts are presented in a simple way, enabling readers at all stages to grasp difficult and often radical ideas quickly and easily." - Tony Barlow, Birmingham City University

"Roberts addresses the subjects that are troubling professionals across the globe, providing a sound theoretical base on which a professional viewpoint can be formed. Complex concepts are presented in a simple way, enabling readers at all stages to grasp difficult and often radical ideas quickly and easily." - Tony Barlow, Birmingham City University