The Lerners took charge of the Darger estate, publicizing his work and contributing to projects such as the 2004 documentary "In the Realms of the Unreal". In cooperation with Kiyoko Lerner, dedicated the Henry Darger Room Collection in 2008 as part of its permanent collection. Darger has become internationally recognized thanks to the efforts of the people who salvaged his work. After Nathan Lerner's death in 1997, Kiyoko became the sole figure in charge of both her husband's and Darger's estates. The U.S. copyright representative for the Estate of Henry Darger and the Estate of Nathan Lerner is the Artists Rights Society.