Born in Berlin, Zach immigrated to what was then known as Palestine in 1936 and served in the IDF as an intelligence clerk during the 1948 Arab-Israeli War. In 1955, he published his first collection of poetry, and also translated numerous German plays for the Hebrew stage. Zach immigrated to Haifa as a child. At the vanguard of a group of poets who began to publish after Israel's establishment, Zach has had a great influence on the development of modern Hebrew poetry as editor and critic, as well as translator and poet. Distinguishing him among the poets of the generation of the 1950s and 1960s is his poetic manifesto Zeman veRitmus etsel Bergson uvaShira haModernit . Zach has been one of the most important innovators in Hebrew poetry since the 1950s, and he is well known in Israel also for his translations of the poetry of Else Lasker-Schüler and Allen Ginsberg.. The literary scholar Nili Rachel Scharf Gold has pointed to Zach an exemplar illustrating the role of "Mother Tongue" culture, in his case vis-a-vis German, on modern Hebrew literature. Zach's essay, “Thoughts on Alterman’s Poetry,” which was published in the magazine Achshav in 1959 was an important manifesto for the rebellion of the Likrat group against the lyrical pathos of the Zionist poets, as it included an unusual attack on Nathan Alterman, who was one of the most important and esteemed poets in the country. In the essay Zach decides upon new rules for poetry. The new rules that Zach presented were different from the rules of rhyme and meter which were customary in the nation’s poetry at the time. From 1960 to 1967, Zach lectured in several institutes of higher education both in Tel Aviv and Haifa. From 1968 to 1979 he lived in England and completed his PhD at the University of Essex. After returning to Israel, he lectured at Tel Aviv University and was appointed professor at the University of Haifa. He has been chairman of the repertoire board of both the Ohel and Cameri theaters.
Awards and critical acclaim
Internationally acclaimed, Zach has been called "the most articulate and insistent spokesman of the modernist movement in Hebrew poetry". He is one of the best known Israeli poets abroad.