He worked as a journalist for Haaretz newspaper, posted in Europe and the United States, and was considered a protégé of its publisher, Gershom Schocken (Zwickau, Germany, 1912 – Israel, 1990).
Elon also penned articles for newspapers in Germany and the United States and published numerous books, including on the topics of Herzl, the Rothschild family and German Jewry.
His book A German Requiem, published in 2002, which tells the story of Central European Jewry, achieved great success.