This document summarizes a scoping review on PhD candidates' information use in knowledge creation. The review aimed to understand PhD students' information behavior and use. It searched multiple databases and included 55 sources published after 1990 in English or Scandinavian languages. The review found that PhD students display disciplinary differences in information searching and citation practices. It also found that while PhD students feel confident searching, they could benefit from training on evaluating information and understanding publishing/citation metrics. The review concluded that libraries should tailor instruction to PhD students' independent nature and the literature review process. It identified gaps around plagiarism and copyright issues.