I’m old fashioned and learn the old way: you print what you need to study, get a pen and a highlighter, have a seat next to a table and get to it. My current position offers me ample downtime but I’m not allowed to carry a portfolio with my study materials around and I don’t like folding my A size papers (ANSI standard) because I end up ruining them that way. A smartphone’s screen is not very big and highlighting text with it is a nightmare. This is medicine I’m studying, meaning lots of graphics to locate veins, nerves… I don’t find it practical but maybe you do? If so, any tips? I could create an epub or pdf file from the materials and use LibreraFD to access them. I don’t know.