The act, process, or result of converting into or writing as an epistle; composing in letter form.
From epistolize plus the suffix -ation, which converts verbs into nouns indicating an action or process. Similar to civilization from civilize or organization from organize.
The epistolization of a novel—turning it into letter-form—is a deliberate artistic choice that makes readers feel like voyeurs reading someone's private correspondence, creating intimacy and immediacy.
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