When the new Doctor Strange movie was announced sometime back, many people who were not diehard comic fans had the same reaction:
No, not like the show, they were asking who Dr. Strange was. Truth is, to try to explain him makes the character sound even more insane (doctor magician who can openly travel between realms of reality) but with the new Benedict Cumberbatch movie that just came out, it might be a nice time to school yourself on the lore so you can go into the film with a stronger knowledge of this strange and intriguing mystic.
The above video is your Dr. Strange 101 course. Thank me later.