1. The Eucharist in the history of doctrine and theology -- The Eucharist in the theology of the fathers -- The Eucharist in medieval theology -- The Eucharist in the Reformation -- Renewal in Eucharistic theology -- 2. The biblical faith -- The institution of the Eucharist -- The presence of Christ -- The one gift -- 3. The sacrament of the Eucharist -- A sacrament is a sign-act -- Sacraments cause grace by "signifying" grace -- The sacrament of the Eucharist -- The body of Christ: the unity of the Eucharist -- 4. The real presence and "transsignification" -- The developments in the theology of the Eucharist -- The mystery of the Eucharist.