Background
Leshem was born in Tel Aviv, British Mandate Palestine.
Leshem was born in Tel Aviv, British Mandate Palestine.
He studied chemistry and biology at Bar-Ilan University, and then statistics and physics at Columbia University in New New York In addition, he studied computer operating systems at International Business Machines Corporation.
At the time of his death, Keshev was the largest independent book publisher in Israel. He taught at the Kfar Silver Youth Village and also at the Ort Educational Institute. He also participated in the development of medical software applications.
He was a proofreader for the Davar newspaper and an editor and translator for the First Rate (at Lloyd's) HaMishmar newspaper.
Leshem has published five books of poetry (the latest of which, הנה ימים באים, Behold, The Days Are Coming was published by Keshev in 2007) and two books connected with the subjects of literature and poetry. He has also translated many books of poetry, prose and analysis, including William Blake"s The Marriage of Heaven and Hell, which he translated twice, in 1968 for the Eked Publishing House and 30 years later for Keshev.
In 1989, he edited the Rav Kol anthology, which was published with the assistance of the Israeli Authors Associations. In 1997, Leshem was one of the founders of the Keshev Poetry Publishing House, together with poets Raffi Weichart and Moshe Dor.
The publishing house focuses on quality original and translated poetry.
Leshem stopped his activities in the publishing house in 2008.