How did Andronicus of Rhodes help preserve Aristotle’s writings?

In the 1st century BCE, Andronicus of Rhodes played a pivotal role in preserving Aristotle’s "esoteric" writings by organizing them into a formal corpus and providing a critical edition of the texts.12

Over time, the quality of Aristotle’s original manuscripts had deteriorated, with much extraneous material added to his major treatises. Andronicus meticulously edited these works, sifting out the superfluous content and arranging the treatises in an order he believed reflected the structure of Aristotle’s thought. This edition established the titles and organizational framework that remain familiar today.32

By publishing these texts, Andronicus facilitated a new era of scholarly Aristotelianism, setting a pattern for philosophical study that persisted for 17 centuries. To support his editorial work, he also authored a treatise that included a defense of his methodology, a biography of Aristotle, an analysis of the works' authenticity, and an examination of the Aristotelian system.13