David Lagercrantz (born 4 September 1962) is a Swedish journalist and bestselling writer[1] known as the author of I am Zlatan Ibrahimovic and The Girl in the Spider's Web, the fourth installment in the Millennium series.

In interviews, David Lagercrantz has spoken of his fear of failure in an intellectually eminent family, of early depression, and of the strained relationship with his father.

[3] After graduating from Kungsholmens gymnasium in Stockholm, David Lagercrantz studied philosophy and religious history, and obtained a degree in journalism from Gothenburg University.

[4] In 1996, Lagercrantz wrote a piece about the adventurer Göran Kropp who, mere days after a disaster on Mount Everest in which eight people died, reached the summit without sherpa or oxygen.

In 2000, Lagercrantz published a biography of the inventor Håkan Lans, A Swedish Genius, which was later adapted as a documentary film, Patent 986.

[17][18] Along with two subsequent Millennium installments also penned by Lagercrantz, The Girl in the Spider's Web has been published in more than 50 countries and is one of the greatest international commercial successes of Swedish literature to date.

In 2015, Lagercrantz published a diary about his work on The Girl in the Spider's Web, and in 2016 Swedish Public Broadcasting released a television documentary on the same topic.

The Girl in the Spider's Web was adapted by Sony Pictures as the first book in the Millennium series to be originally produced in English.

[21] Obscuritas is the first of five planned installments in Lagercrantz's crime fiction series about Professor Hans Rekke, an international expert on interrogation technique, and Micaela Vargas, a young street cop from Husby.

[citation needed] Lagercrantz is on the board of Swedish PEN, which campaigns for and supports oppressed and imprisoned writers across the world.

Lagercrantz has made significant donations to organizations such as Läsrörelsen (which promotes children's and youth reading),[26] Grävfonden (a foundation for training journalists in investigative reporting),[27] and Swedish PEN.