His father, Atilla Eldem, was a well-known actor of the Ankara State Theatre and his mother was a high school literature teacher.
His writings mostly concentrated on post-World War II counter-culture movements in Western World, particularly the avant-garde literature of the fifties and particularly in rock music.
In 1986, his third book came: "From May Flower to the Song of Peace"; a work on American protest folk music of sixties, centered around the singer Joan Baez.
In 1997, he shifted his career towards "new media" working as a contributing editor and a columnist at ZDNet's Turkish edition; then in 2000, he became the portal manager of the leading internet content provider and ISP "Ixir".
[4] Examining, adapting and developing the work of Zecharia Sitchin, the book refers to the hypothetical Planet X, and suggests an orbital period of 3661 solar years with a return date in 2012.
[5] On the other hand, his works had very positive critics from some of the outstanding writers and journalists of the Turkish Press, like Engin Ardıç[6] and Serdar Turgut,[7] the editor-in-chief of daily newspaper Akşam (The Evening).
Eldem prepared an eight-days article series[11] in April 2005 for the daily newspaper Akşam, which presented a mini summary of "2012: Rendez-vous With Marduk".