Michael Cunningham, 43, was found guilty Monday of exposing himself to a young girl while working at Title Wave Books last year.
Following a bench trial on Aug. 1, Anchorage Superior Court Judge Michael Wolverton announced Cunningham's conviction Monday. District Attorney Clint Campion said Cunningham has remained in custody since the trial.
The charges against Cunningham say he was working at Title Wave in July 2016 when he exposed himself to a 7-year-old girl. She had asked Cunningham "for help finding the Harry Potter section of the book store," prosecutors said.
Surveillance video presented during the trial showed Cunningham masturbating in the presence of the girl, prosecutors said.
Court records indicate Cunningham has two prior public indecency convictions in Oregon. The records say he was required to register as a sex offender in Oregon but not in Alaska.
Sentencing was set for Dec. 15. Cunningham faces two to 12 years in prison.