I have gone to YouTube lecture series for a few years for my 1hr/day commute (by car). Some notable topics that work well are history, law, psychology. Generally it depends entirely on the lecturer. Many old school lecturers don't take advantage of visual aid. Unfortunately the more technical the lecture the more it relies on visual aid and the less I am able to learn purely auditorially.
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I have gone to YouTube lecture series for a few years for my 1hr/day commute (by car). Some notable topics that work well are history, law, psychology. Generally it depends entirely on the lecturer. Many old school lecturers don't take advantage of visual aid. Unfortunately the more technical the lecture the more it relies on visual aid and the less I am able to learn purely auditorially.
https://m.youtube.com/user/YaleCourses/playlists
I've also found success with Audible and podcasts.