To answer your question, Jordan Peterson's video lectures series, "Maps of Meaning" (You would need internet access to YouTube). For long flights, I buy magazi

To answer your question, Jordan Peterson's video lectures series, "Maps of Meaning" (You would need internet access to YouTube). For long flights, I buy magazines in the airport shop (Wired and Scientific American). I also have my music collection on Spotify on my phone with wireless Bose headphones to listen to. Also, several books on Kindle on my phone (now reading "Sapiens: A Brief History of Humankind"). Don't forget a spare battery. Or, sometimes I check the plane's movie list for a new release I haven't seen and watch that.