Percolation theory is the study of an idealized random medium in two or
more dimensions. The mathematical theory is mature, and continues to
give rise to problems of special beauty and difficulty. Percolation is
pivotal for studying more complex physical systems exhibiting phase
transitions. The emphasis of this book is upon core mathematical
material and the presentation of the shortest and most accessible
proofs. The book is intended for graduate students and researchers in
probability and mathematical physics. Almost no specialist knowledge is
assumed. Much new material appears in this second edition, including:
dynamic and static renormalization, strict inequalities between critical
points, a sketch of the lace expansion, and several essays on related
fields and applications.