The Trompowsky attack, which arises after 1.d4 Nf6, Bg5 has matured into a full-blooded opening. On this CD a repertoire from White´s point of view is given. Database texts give you explanations of the important and critical positions. Just playing through some of the key games will enable you to understand the main points of the variation. Apart from that there is a large reference database with over 6,000 games on the CD, as well as a smaller database with training questions.