age ▁with ▁these ▁constraints . ▁This ▁creates ▁a ▁work ▁of ▁literature ▁that ▁def ies ▁conventional , ▁traditional ▁narr ative ▁structure , ▁form ▁or ▁voice , ▁among ▁other ▁features , ▁as ▁the ▁work ▁takes ▁on ▁elements ▁it ▁would ▁not ▁previously ▁or ▁naturally ▁have ▁been ▁subject ▁to . ▁ ▁Ex amples ▁Ex amples ▁of ▁combin atory ▁literature ▁are ▁diverse , ▁expl oring ▁various ▁combinations ▁among ▁numerous ▁discipl ines . ▁There ▁are ▁several ▁notable ▁works ▁of ▁combin atory ▁literature ▁that ▁rely ▁on ▁adjust ing ▁writing ▁constraints ▁and ▁struct ural ▁influ ences , ▁or ▁apply ▁principles ▁from ▁mathematics . ▁For ▁a ▁complete ▁list ▁of ▁struct ural , ▁language - based ▁writing ▁constraints ▁and ▁examples , ▁see ▁const rained ▁writing . ▁ ▁Writing ▁constraints ▁ ▁In ▁an ▁advanced ▁case ▁of ▁const rained ▁writing , ▁Italian ▁writer ▁Ital o ▁Cal v ino ▁removes ▁the ▁voice ▁from ▁his ▁characters ▁in ▁his ▁novel ▁The ▁Castle ▁of ▁Cross ed ▁Dest in ies . ▁Each ▁character , ▁upon ▁arriv ing ▁in ▁an ▁en ch anted ▁forest , ▁can ▁only ▁communicate ▁their ▁story ▁through ▁the ▁placing ▁down ▁of ▁tar ot ▁cards . ▁Given ▁the ▁finite ▁amount ▁of ▁tar ot ▁cards ▁in ▁a ▁deck , ▁each ▁following ▁character ▁must , ▁upon ▁explaining ▁their ▁story ▁of ▁arrival ▁in ▁the ▁forest , ▁increasing ly ▁rely ▁on ▁the ▁stories ▁that ▁came ▁before ▁it . ▁At ▁the ▁conclusion ▁of ▁the ▁novel , ▁the ▁stories ▁can ▁be ▁read ▁backwards ▁to ▁different ▁mean ings . ▁As ▁expl ored ▁by ▁academic ▁Jo ann ▁C annon , ▁Cal v ino ▁explicitly ▁forces ▁himself