From the reviews: "The book provides a self-contained exposition of an order-theoretic fixed point theory in partially ordered sets together with its interactions with topological structures. ... The book is well written and provides a very detailed study of theoretic topics along with many illustrative examples and applications of various types covering an immense range of problems. ... the book is very well designed for studying nonlinear problems via a fixed point approach. Both graduate students and mathematicians ... will find this book attractive, useful and highly instructive." (Wojciech Kryszewski, Mathematical Reviews, Issue 2012 c)