He is the Author of some forty books of poetry, prose, essays and translations —among them 16 poetry collections — and studies on Moroccan and modern Arabic poetry. Bennis has been published in numerous newspapers and reviews across the Arab world. Some of his poems and texts have been translated and published in collective works, reviews and newspapers, in Europe, the United States, and Japan. From 1995, his poetry collections and books have been translated and published into French, Spanish, Italian, Turkish, German and Macedonian. He also writes on painting. Some of his works have been realized by painters as books and folio volumes in Morocco, Europe, the United States, and Japan. Kitab al-Hobb (The Book of Love), which was published in 1994 with the Iraqi painter Dia Azzawi, is the story of a common adventure.