A personal log, or daily log, was a type of log used to record a person's thoughts about a current mission, or record discrete entries arranged by date and reporting on activities over the course of a day, which could be recorded by name as an unofficial documentation of events as viewed from their professional position. It was similar to a diary, and was meant to be a personal record not available to others. (DS9: "Whispers"; VOY: "The Omega Directive")

In the 1990s, Shannon O'Donnel had the custom of keeping a personal oral diary with her tape recorder. (VOY: "11:59")

Positional personal logs

Individual personal logs

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