▁book ▁on ▁G ense iry ū ▁in ▁ 1 9 8 4 . ▁The ▁book ▁is ▁titled : ▁ <0xE7> <0x8E> <0x84> 制 流 空 手 道 教 <0xE7> <0xAF> <0x84> <0xEF> <0xBC> <0x92> ▁- ▁ 型 編 ▁(" G ense iry ū ▁Kar ated ō ▁Ky ō han ▁ 2 ▁- ▁k ata ▁hen " ▁or : ▁" The ▁teach ings ▁of ▁G ense iry u ▁Kar ated o ▁ 2 ▁- ▁k ata ▁collection ") ▁and ▁contains ▁a ▁pre face ▁by ▁Se iken ▁Sh uk um ine ▁( 1 9 2 5 – 2 0 0 1 ). ▁The ▁book ▁contains ▁pictures ▁and ▁detailed ▁descri ptions ▁of ▁the ▁nine ▁official ▁advanced ▁k ata ▁of ▁G ense iry ū ▁( a ▁total ▁of ▁ 2 3 ▁k ata ▁are ▁taught ▁and ▁pract iced ▁in ▁G ense iry ū ▁as ▁part ▁of ▁the ▁official ▁curr icul um ). ▁The ▁versions ▁of ▁the ▁k ata ▁in ▁this ▁book ▁are ▁the ▁versions ▁officially ▁recognized ▁in ▁Japan ▁by ▁the ▁Japan ▁Kar ate - do ▁Federation ▁( J K F ). ▁ ▁Volume ▁ 2 ▁The ▁author , ▁K uni h iko ▁T osa , ▁initially ▁planned ▁a ▁ 2 ▁volume ▁series , ▁one ▁containing ▁the ▁bas ics ▁of ▁G ense iry ū ▁and ▁the ▁other ▁containing ▁the ▁advanced ▁k ata . ▁Due ▁to ▁the ▁costs ▁of ▁issu ing ▁two ▁volumes ▁at ▁that ▁time ▁( ear ly ▁ 1 9 8 0 s ), ▁K uni h iko ▁T osa ▁decided ▁to ▁first ▁issue ▁the ▁sequ el