Holy cow, I wrote a book!
this comment directly, but it deserves reiteration with wider
If you want to see characters beyond the boring 7-bit ASCII,
make sure you are using a font that can display those characters.
I am assuming a level of competence where issues like this
go without saying, so that I can dig into the more advanced topics
without having to explain all the basics, but I have to accept that
people of all levels of programming experience read my stuff.
But the second part raises an advanced question:
How do you find a font that
can display the characters you want? What if the characters can come
from a source outside your control? We'll look at this tomorrow.