On many occasions throughout the history of the Catholic Church, God has provided visible proof of the invisible reality of the Real Presence of Jesus Christ in the Holy Eucharist.

In her book, Eucharistic Miracles, Joan Carroll Cruz documents 36 such miracles which occurred from 800 AD to the present day. This book tells of consecrated Hosts which have visibly turned to human flesh, have bled, levitated, and which have become hard as flint when received by a person in mortal sin. It details the official investigations that have been made into these miracles by scientists throughout the world, and where some can still be venerated today. Eucharistic Miracles also recounts miraculous Eucharistic phenomena in the lives of saints: saints who lived with only the Eucharist for sustenance, received Communication miraculously, or experienced raptures, ecstasies, levitations, visions, locutions, and more.

Eucharistic Miracles is a superb compilation of God's visible testimony of the truth of the Catholic Faith, proving the reality of one of its loftiest mysteries — the Real Presence of Jesus Christ in the Holy Eucharist.