普里莫·莱维最初选择用“非虚构”的写作方式直面奥斯维辛，正视曾身处“灰色地带”而产生的羞愧，以书写对抗刻意的遗忘与历史的修正。在长达几十年的写作过程中，莱维逐渐对何为“真实”做出思考，并将非虚构与虚构交织融合建构出一种新的叙述空间，在一定程度上绕开或搁置了他提出的“已经死亡的底层受害者才是真正的见证者，幸存者作为例外，在某种意义上只是伪见证者”的悖论。在新的叙事空间中，莱维通过使用反讽的修辞手法及建构个人简洁、准确的叙述风格来使其作品上升到“作品性”的高度，在更高的层次上完成见证。

Primo Levi initially chose a "nonfiction" writing method to face Auschwitz, faced up to the shame of being in "the Grey Zone", and wrote against deliberate forgetting and historical revision. In the process of writing for decades, Levi gradually pondered what is "truth", and constructed a new narrative space by combining nonfiction and fiction to a certain extent, bypassed or shelved his paradox that "the bottom victims who have died are the real witnesses, and the survivors, as exceptions, are only false witnesses in a sense". In the new narrative space, Levi used ironic rhetorical techniques and constructed a personal concise and accurate narrative style to make his works rise to the height of "workness", so he completed testimony at a higher level.