Polish speaking areas.
Polish is spoken/understood in the border regions neighbouring:
this as a result of the annexation of territory after WWII to Poland.
There are no real dialects in Polish with standard Polish spoken and understood by all Polish speakers without any problems.
Due to the amount of historical migration of Poles over the centuries and most notably since joining the EU, there are large Polish speaking communities in most G20 countries.
Polish uses a lot of accented letters (see below).
Polish also uses a lot of digraphs (see below).
The Polish Latin script does not use Q, V or X.
To type accents with ALT codes, hold down the ALT key, then on the numeric keypad type the three or four digits listed here. However not with laptops, ALT codes only work with the numeric keypad, NOT the row of numbers across the top of your keyboard, as on laptops.
A with ogonek
C with acute accent
E with ogonek
L with stroke
N with acute accent
O with acute accent
S with acute accent
Z with acute accent
a with ogonek
c with acute
e with ogonek
l with stroke
n with acute accent
o with acute accent
s with acute accent
z with acute accent
z with dot
Wszyscy ludzie rodzą się wolni i równi pod względem swej godności i swych praw. Są oni obdarzeni rozumem i sumieniem i powinni postępować wobec innych w duchu braterstwa.
All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood. (Article 1 of the Universal Declaration of Human Rights)
Indo-European > Slavic > Western
The Defense Language Institute categorizes Polish as difficult (level 3, of 4 levels)