That is to say, it is based on the Spanish rite as varied by the customs of Isaac Luria, and resembles those in use in Greek, Turkish and North African Jewish communities. In earlier decades some communities and individuals used "Edot ha-Mizraḥ" prayer-books which contained a slightly different text, based on the Baghdadi rite, as these were more commonly available, leaving any specifically Syrian usages to be perpetuated by oral tradition. The nearest approach to a current official prayer book is entitled Kol Ya'akob, but many other editions exist and there is still disagreement on some textual variants.