Chess tactics explained in English: the website www.chesstactics.org in book form. This volume is the first in a two-part set. The two books together contain over a thousand examples organized in unprecedented detail. Every position is accompanied by a commentary describing a train of thought that leads to the solution; these books thus are the ideal learning tool for those who prefer explanations in words to long strings of notation. This first volume provides an introduction to tactics and explains forks and discovered attacks. (Book II covers pins and skewers, removal of the guard, and mating patterns.) A hardcover version is also available.