"Simply stated, the purpose of this Concordance is
TO PROVIDE STUDENTS WITH A HANDY,
SINGLE-VOLUME REFERENCE WORK
that will enable them to locate quickly and easily a statement in A Course in Miracles by looking up any key word of that passage.
The Concordance is keyed to the Viking-Penguin edition, fifth printing, of A Course in Miracles, and the fourth printing of th two scribed pamphlets, Psychotherapy: Purpose, Process and Practice and The Song of Prayer, published by Viking-Penguin under the title Supplements to A Course in Miracles....."
[from the book of the introduction
by Kenneth Wapnick, Ph.D.,
Foundation for Inner Peace,
Foundation for A Course in Miracles]