Ahmad Shamlou was an Iranian poet, writer, and journalist. Shamlou was arguably the most influential poet of modern Iran. His initial poetry was influenced by and in the tradition of Nima Youshij. In fact, Abdolali Dastgheib, Iranian literary critic, argues that Shamlou is one of the pioneers of modern Persian poetry and has had the greatest influence, after Nima, on Iranian poets of his era. Shamlou's poetry is complex, yet his imagery, which contributes significantly to the intensity of his poems, is accessible. As the base, he uses the traditional imagery familiar to his Iranian audience through the works of Persian masters like Hafez and Omar Khayyám. For infrastructure and impact, he uses a kind of everyday imagery in which personified oxymoronic elements are spiked with an unreal combination of the abstract and the concrete thus far unprecedented in Persian poetry, which distressed some of the admirers of more traditional poetry.

Intellectual movements in Iran involve the Iranian experience of modernity and its associated art, science, literature, poetry, and political structures that have been changing since the 19th century.