You can use the "img" tag with the additional "align=" attribute. For example...
<img src="image.png" alt="test image" align="right" />
You can position the image right, left, middle and several other positions.
Check
this site for details.
Use the align attribute to wrap text around the image as well. Placing the image in a table is a nice way to deal with text wrapping.
![Wink ;)](./images/smilies/icon_wink.gif)
Placing images side by side is just a matter of placing the "img" tags next to one another with no line breaks </br>.
Most browsers aren't that strict and versions of HTML vary so you may see slight differences in syntax when you look at code.
The align attribute is actually depreciated. It's still supported due to lots of legacy HTML out there and it probably isn't going away soon. However, most people now use CSS to align text and graphics. You can use the "style=" attribute to place your CSS code in-line with your HTML.
Check out this
CSS tutorial if you get a chance.