From the reviews of the first edition: "The book by Z. Denkowski, S. Migorski, and N. S. Papageorgiou is a valuable addition to the literature on the subject. We strongly recommend it as a rigorous, up-to-date text in the field." (Sergiu Aizicovici, Ohio University) "The book under review ... covers some applications of nonlinear analysis. ... This volume will be very useful for everybody whose research involves methods from nonlinear analysis. Overall this is a very interesting and well written book." (Tzanko D. Donchev, Mathematical Reviews, 2005 b) "The monograph under review concentrates on the applications of nonlinear analysis ... . The monograph is enriched by many examples and applications to various problems, also of concrete type. ... Historical and bibliographical remarks concluding each chapter are very interesting and valuable. ... This monograph is well organized and clearly written. It is very useful for anyone who is interested in modern nonlinear analysis and its applications. It is ideal both as a text for a graduate-level class and as a reference for researchers." (S. Burys, Zentralblatt MATH, Vol. 1054 (5), 2005)