This 178 minute dvd is devoted to the middlegame, twice US Chess Champion GM Patrick Wolff (1992 & 1995) demonstrates how to best formulate plans and how to evaluate chess positions.

Wolff deals with a variety of topics that have an influence on the objective evaluation of a position, including:

Pawn Structures; Material versus Initiative; The imbalance in positions with bishop versus knight; Decisions regarding trading down into an endgame, and; Decisions based on short-term planning versus long-term planning.