ivo ▁with ▁E ik oh ▁H os oe ▁and ▁I kk ō ▁Nar ah ara . ▁Two ▁years ▁later , ▁his ▁and ▁Ken ▁Dom on ' s ▁book ▁H iro sh ima – N agas aki ▁Document ▁ 1 9 6 1 , ▁on ▁the ▁effects ▁of ▁the ▁atomic ▁bomb s , ▁was ▁published ▁to ▁great ▁acc laim . ▁ ▁In ▁ 1 9 7 2 , ▁he ▁moved ▁to ▁Ok ina wa ; ▁in ▁ 1 9 7 5 , ▁his ▁pri zew in ning ▁book ▁of ▁photograph s ▁of ▁Ok ina wa , ▁P enc il ▁of ▁the ▁Sun ▁( , ▁Tai y ō ▁no ▁en p its u ) ▁was ▁published . ▁ ▁T ō m ats u ▁moved ▁to ▁Nag as aki ▁in ▁ 1 9 9 8 . ▁▁ ▁T ō m ats u ▁died ▁in ▁N aha ▁( Ok ina wa ) ▁on ▁ 1 4 ▁December ▁ 2 0 1 2 ▁( although ▁this ▁was ▁not ▁public ly ▁announced ▁until ▁January ▁ 2 0 1 3 ). ▁ ▁Ex hib itions ▁T ō m ats u ▁has ▁had ▁various ▁ret ros pect ives , ▁both ▁within ▁Japan ▁and ▁abroad . ▁In ▁the ▁early ▁years ▁of ▁the ▁new ▁century ▁he ▁emb ark ed ▁on ▁a ▁new ▁and ▁compreh ensive ▁series ▁of ▁ret ros pect ives , ▁div iding ▁his ▁o e uv re ▁into ▁five ▁" m andal as " ▁of ▁place : ▁Nag as aki ▁Mand ala ▁( N agas aki ▁Pref ect ural ▁Art ▁Museum