I came across a few things when I typed in "hieroglyphics facts" on Google :)
This was all found on the website Ducksters.com. Here is the link: https://www.ducksters.com/history/ancient_egyptian_hieroglyphics.php
*I did not come up with any of this information. All credit goes to Ducksters.com*
It could be written in almost any direction; left to right, right to left, or top to bottom. The reader would figure out which way to read it by the direction of the symbols.
They didn't use any punctuation.
One of the goals in writing hieroglyphics was that the writing would look like art and be beautiful to look at.
A single picture symbol could stand for a whole word, called an ideogram, or a sound, called a phonogram. For example, a picture of an eye could mean the word "eye" or the letter "I".
There's a lot more on other sites, too, but I hope this helps you! :)
