essays:
The Immortals (Nesmrteľní, 1963), A Defense of Poetry (Obrana poézie, 1963), A Diary 1962 - 1968 (Denník, 1999)
translations by the author:
Kupec was a renowned translator of German and Austrian poetry, H. Arp,
J. Bobrowski, P. Celan, K. Krolow, an anthology of East-German verse. He also translated poems from Russian (A. S. Pushkin's Eugen Onegin ), from Hungarian
(V. Egri), made his adaptations of Tu Fu and Li Po, and paraphrases of old oriental poetry.
works translated:
The poems of Ivan Kupec were translated into a dozen of languages and published in several anthologies abroad.
Conversations with the Shadows (2000 Norwegian)