A comprehensive study book for players who would like to cultivate a reliable yet initiative-seeking opening repertoire as White, based on the opening moves 1 d4 followed by 2 c4. Specific main lines and side-variations are given to combat Black's possible choices of the King's, Queen's and Bogoljubow-Indian defences as well as the modern Benoni and Benko Gambit. The author also recommends promising methods against the various Black defences to the Queen's Gambit as well as a number of offbeat lines. A practical opening guide for competitive players who prefer to build their games on solid foundations rather than indulge in risky speculation.