I recently found these videos about number theory https://youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8 https://youtube.com/playlist?list=PL8yHs

I recently found these videos about number theory https://youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8 https://youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAO... And I was surprised both by how effective the method of camera and pen and paper was and by the didactic quality of the lectures