This book is an empirical study and illustrates the advantages of liberalisation of the postal service sector market in general and identifies the reasons for this. The conclusion provides recommendations about future structure and process of postal service market in the UK. This book was conducted in association with public institutions such as Royal Mail, Postwatch, PostComm, DTI, Shareholder Executive, and Scottish Parliament. The author, Mandy Boettiger, would like to thank Brian Kennedy and Cordula Schneider.