From the reviews: "In this book the authors present a complete proof of the Langlands conjecture for GL (2) over a non-archimedean local field, which uses local methods and is accessible to students. ... The book is very well written and easy to read." (J. G. M. Mars, Zentralblatt MATH, Vol. 1100 (2), 2007) "The book under review gives a complete and self-contained insight into the theory of representations of G. ... We highly recommend this book to Ph.D. students as well as to specialists. The book contains a huge amount of information, definition and facts ... . The book has a Bibliography containing 91 references ... ." (Alexandru Ioan Badulescu, Mathematical Reviews, Issue 2007 m) "The aim of this monograph is to present a complete and self-contained proof of the Langlands conjecture for GL(2) over a non-archimedean local field. ... This volume presents a large amount of difficult material in a clear and readable manner. It can be recommended to anyone interested in representations of linear algebraic groups." (Ch. Baxa, Monatshefte fur Mathematik, Vol. 154 (4), August, 2008)