tables are pretty easy. Here is a basic one row one column table
<table>
<tr><td></td></tr>
</table>
the <table> elements begina nd end your table
the <tr> means TABLE ROW which begins and ends your row
the <td> means TABLE DATA which is where you put the content. It is also the columns.
they are basically containers.. and the <td> </td> is always where you will put the content. You can use things like "colspan" to make a column span across multiple rows like this:
<table>
<tr colspan="2"><td></td></tr>
<tr><td></td><td></td></tr>
</table>
that is a table with two rows. In the first row there is just one cell that goes from one end to another. The second row is two separate cells.
You can get a complete explaination on creating tables, doing nice borders, and using the attributes to create more unique tables here: