Echo / Eco is an enigmatic compellation of poetry offered in both English and Spanish offered by theoretical physicist, Sultan Catto. Catto has been writing and giving poetry readings for several years. Some of his poems are published in Yale Poets, others in literary journals and anthologies such as Noches de Cornelia, An Anthology of Contemporary Poetry, the Seventh Quarry, Bhosphorus, Paterson Literary Review, Long Island Sounds, Israeli Poets, Korean Expatriate Literature, and Shabdaguccha (Bengali Literary Review). Catto's first poetry book Under the Shadows of Your Falling Words was published by Editions Godot, and a book of Spanish translations as well as his third and fourth books are forthcoming this year. His poems, originally in Turkish, have been translated into many languages, including Bengali, Chinese, Italian, Japanese, Korean, Spanish and Mongolian. He was also minated for the Pushkart Prize in poetry.