Information from the Chessbase website:
The Isolated Queen's Pawn
There are countless openings and lines to a position with an isolated Queen’s pawn. This is a type of position you just can’t avoid, so you have to know how to play it. Reinhold Ripperger presents the basic IQP techniques and manoeuvres, demonstrating strengths and weakness of the isolani in many classical games. The author says: ”The fact is that in almost all World Championship matches, positions with isolated pawns have played an important role. Studying positions with isolated pawns intensively is not only great fun, but also improves one’s strategical understanding as well as one’s ability to spot tactics. In short it raises one’s playing strength!” In a further database with training questions, you can prove your freshly acquired knowledge sweating against the clock.