We suggest that you read the entry “Eschatology” in volume 6 of Encyclopaedia Judaica (pp. 860-86). You can find this encyclopedia in most libraries. It is also available on CD. In addition, read JewishEncyclopedia.com’s excellent entry on “Eschatology.” Encyclopaedia Judaica and JewishEncyclopedia.com are usually the places to begin when searching for information on biblical or Jewish subjects.