▁in ▁D ug ging en ▁near ▁Bas el , ▁where ▁he ▁lived ▁until ▁his ▁death . ▁ ▁His ▁first ▁international ▁success ▁came ▁as ▁a ▁designer ▁of ▁post ers . ▁He ▁designed ▁more ▁than ▁five ▁hundred , ▁many ▁of ▁which ▁won ▁pri zes . ▁In ▁ 1 9 6 4 ▁his ▁work ▁was ▁included ▁in ▁the ▁graph ic ▁design ▁section ▁of ▁document a ▁III ▁in ▁K ass el . ▁ ▁In ▁ 1 9 6 1 ▁Pi atti ▁became ▁the ▁designer ▁for ▁the ▁newly ▁founded ▁Deutsch er ▁Tas chen buch ▁Verlag ▁( dt v ) ▁of ▁Mun ich . ▁As ▁well ▁as ▁their ▁cover ▁designs , ▁Pi atti ▁was ▁responsible ▁for ▁the ▁company ' s ▁typ ography , ▁sign ets , ▁letter head s , ▁advert is ements ▁and ▁post ers , ▁giving ▁the ▁D TV ▁catalog ue ▁a ▁uniform ▁identity ▁which ▁combined ▁the ▁International ▁Typ ographic ▁Style ▁with ▁qu ir ky ▁illustr ation . ▁His ▁distinct ive ▁covers ▁used ▁the ▁sans - ser if ▁Ak z iden z - G ro tes k ▁type face ▁in ▁black ▁against ▁a ▁white ▁background . ▁From ▁ 1 9 6 1 , ▁beginning ▁with ▁Heinrich ▁B öll ' s ▁Ir isches ▁Tage buch , ▁to ▁ 1 9 9 1 , ▁he ▁designed ▁almost ▁all ▁of ▁D TV ' s ▁publications , ▁a ▁total ▁of ▁more ▁than ▁ 6 , 3 0 0 ▁titles . ▁ ▁In ▁ 1 9 8 7 , ▁the ▁D TV ▁produced ▁a ▁ret ros pective ▁book ▁about ▁Pi atti ,