Discussing how chess players can improve their middle-game performance, this guide explains how to analyze the strategic and tactical elements of a position, and how to form a plan and to check that is it sound. The main part of the book presents 30 tests in a series of increasing complexity. In each position the reader is invited to spend about half an hour choosing one of the three suggested continuations. The answers are awarded points on a scale of 0-10, and a self-rating table then converts the total number of points obtained into an ELO rating and, for English players, a BCF rating.