Leif Pedersen was born in Brussels on 26th June 1997. He spent his first six year of his life in Brussels, when he moved to Alicante (Spain), due his father being diagnosed cancer.
As a child he starts writing and with 6 years he draws and writes comics whose main character is a snowman.
He wins a writing competition in primary school twice.
Between 2008 and 2010 he starts to write larger texts. From this date are two volumes of his character Nakubo titled "A lucky scientific" and "The conquest of the Himalaya".
But it was not until his English teacher set up a writing assignment based on images, when he truly started his writing career.
With 14 years he starts to write his first crime novel, which is set in Denmark, where his father was from. He would not finish this novel until one year later due lack of inspiration.
At the same time his father suffers another cancer. The cancer and the later worsening of his father's health changed his life and Leif was truly affected.
His father died in 2013.
In October 2013 he writes in just a month "The U Nucleus", the second volume of his series "Inspector Leif Anders Pedersen". In this volume the author reflects some of his personal tastes and inspirations, as well as he introduces some facts about his own life, such as the victim's name, identical to the name of his father.
In November 2013 he finishes "Swedish murders in Christianshavn", which the author said did not reach the quality of his previous work, "The U Nucleus".
He starts to publish his manuscripts with DRSC Publishers.
By then, the author suffers from memory losses, which prevents him from writing his works in one go as he is forced to write details down to remember the development of the story.
In 2014 his paternal grandmother dies and Leif feels that every bond between him and Denmark is broken.
In summer 2014 he finishes the fourth volume of his series "Inspector Leif Anders Pedersen". DRSC Publishers proposes him to correct a part of the texts due to some gaps and incoherencies.