Jacob Aagaard
Excelling at Positional Chess
Learning positional play is perhaps one of the hardest things to learn in chess. With "Excelling at Positional Chess" Jacob Aagaard makes it a whole lot easier to learn the concepts of positional chess.
Recommendations
Let's do some positional training. These are positions from Aagaards book Excelling at Positional Chess. Jacob Aagaard is of course a very famous chess author and he produces very good material.