Another clear trend is an interest in biographies, especially of authors and artists. Many of the significant living writers during the 1980s have written one or more biographies of deceased artist or other colleagues. In addition, several significant biographies were written. "The Fall of the Sun God. Knut Hamsun" by Jørgen Haugan and Ingar Sletten Kolloen's Knut Hamsun biography received great attention. There is a trend in these modern biographies – similar to today's cinema and unlike the past – to use source material of a private character.