 There is a wealth of information in the subsequent commentary tradition about the early (that is, 1st century BCE) reception of the Categories. Even the expert reader is often left wondering how best to organize it. The reader of this entry will find a useful presentation of the extant evidence in a recent monograph produced by Michael Griffin (Griffin 2015, to be read along with the critical comments offered in Falcon 2018 and Menn 2018; with a response by Griffin in Griffin 2020). According to Griffin, Andronicus of Rhodes played a key role in the Post-Hellenistic surge of interest in Aristotle’Categories. Andronicus placed the Categories at the outset of his catalogue (pinakes) of Aristotle’s writings. He saw in this treatise a useful introduction to Aristotle’s theory of predication, aimed at (absolute) beginners in Aristotelian logic. In the end, what Andronicus thought of the Categories did not matter; what mattered was the place that he assigned to this work in his pinakes. The prominence assigned to the work in his pinakes contributed to attract attention to an hitherto obscure work.