روش‌های حل مسئله: جلد سوم

We published a first book Methods of Problem Solving in 1996, planning to make it the first of a series on this theme. The aim was to have chapterson special facets of problem solving, also presenting for the first timesome problems which were not well known in the English language.We followed up with a second book, with 5 more chapters, each on aparticular problem-solving theme, in 2002.Now Emil Kolev, in recent years leader of the Bulgarian IMO team, hasjoined our writing team and we present 5 new chapters in a third book.As in the previous books, the problems have been selected to illustratethe most important and useful ideas, details and techniques of themethod discussed. The number of the problems in each chapter is about10 to 15, and this gives readers the opportunity to understand quickly theessence of the method.Almost every chapter begins with a short theoretical explanation.