In 1994 he published the book “Ekkert Mál” a documentary in the honor of the late Mr. Jón Páll Sigmarsson, a four time winner of World’s Strongest Man. Halldór and Jón Páll had agreed on Halldór publishing a book about Jón Páll’s achievements and career. Unfortunately Jón Páll passed away suddenly at an early age, Halldór still wanted to uphold his promise and published the book “Ekkert Mál” (which means “No Problem), an expression Jón Páll used a lot since almost everything was no problem for the strongman. “Ekkert Mál” is the only biography that Halldór has published.