The Messiah Mystery, a packed one-volume book, has found warm acceptance among both untaught and biblically conversant people. Their enthusiasm for getting a grasp on a panoramic overview of man's pilgrimage has caused many to wish to share in this approach. The resource Keys to The Messiah Mystery is a guidebook that brings together various materials that may be used on studying the 24 chapter book. The Keys suggest three alternative course formats that are designed for a number of settings - individual or group, formal or informal, short or long sessions.