The author outlines the historical development of the Anaximenean corpus on the basis of an examination of the indirect tradition. From the third to the first century BCE, biographers, philologists and erudite scholars appear to have extended the number of works attributed to Anaximenes. Because of Anaximenes’ original poligraphy and ability to imitate the style of others, and the activity of his rhetorical school as well, scholars often attributed to him works either adespota or suspected to be inauthentic. After the first century BCE, instead, philologists limited the number of the Anaximenean works for they questioned the authenticity of some of them. The author then discusses the reasons why Anaximenes’ historical and rhetorical works have mostly disappeared, with the notable exception of the Rhetoric to Alexander.Keywords: Anaximenes of Lampsacus, corpus, fourth-century historiography, authenticity, fourth-century rhetoric.