The book explains how to solve chess problems and studies. Material is sorted into several chapters - two-movers, three-movers, more-movers, helpmates, selfmates, retroanalysis, studies. Many samples with detailed comments, index of composers at the end. GM John Nunn is well-known as excellent chess solver - he has won the British Problem Solvin Championship three times, has won an olympiad gold medal for solving etc. A sample from the book is available on publishers website gambitbooks.com