Acheiropoeta: Not Made By Hands

This invaluable resource—the only book of its kind—presents a thorough scientific examination of the two most debated sacred images in existence: the Holy Image of Our Lady of Guadalupe on the tilma of Juan Diego and the Sacred Image of the crucified Christ on the Shroud of Turin. Both presentations bring together ample scientific evidence for the authenticity of each image, drawing on the author's background in the physical sciences.

Written at a pivotal moment in Shroud research, this book reflects the state of scholarship as of its original 1998 publication and remains a substantive introduction to the evidence as it stood at that time. On the 1988 carbon-14 dating tests, which led many in the 1990s to dismiss the Shroud as a medieval forgery, the author provides serious scientific reasons to doubt their accuracy and conclusiveness—a judgment that subsequent research has continued to support.