Smith & Hall: "Nowadays the Reti(1.Nf3 d5 2.c4) is a staple opening of many strong GM's in top tournament play. There is a steady stream of theoretical discoveries for both White and Black. In this book we analyze in depth the main lines of play in this opening. Often we give several good choices for white - just in case Black finds a "new move" in a main line setting. By thorough study of this book you will be well armed to outmaneuver your opponent with White, in the complex and fascinating pathways of the hypermodern Reti."
Beating the Pirc/Modern with the Fianchetto Variation
One of the most solid and consistently successful systems available against 1..d6 and 1..g6 is the subtle Fianchetto. If you play 1.e4, you will want to know how to beat the Pirc/Modern. If you play either of these 2 defenses, you will want to know what will be played against you. The White setup is pawns at e4, d4, and g3, White Knights at c3 and e2, and Bishops at g2 and usually e3 - then attack, attack!