[2] In 1991, Nilsen together with Lars Einarsson created Uptown, a professionally designed international journal devoted to exploring Prince’s music.
However, in 1999 Prince and his management filed a suit against the journal, seeking to halt its publication since they could not control the content.
Enlisting the help of a lawyer (longtime Uptown reader Alex Hahn), the journal successfully defended the case and the lawsuit was subsequently dropped.
Nilsen studied systems development at Linköping University in 2001-2002, which led to a career as a researcher.
In 2015, Nilsen conducted a systematic review of the theories and methods underlying the practice of implementation science; his methods were later adopted by OECD researchers seeking to apply implementation science to the field of education.