This article was originally published in 2001, but SSH is still among the most popular Open Source communication tools.

Here are some excellent sources, online and print, for further learning.

I've helped a number of people learn to write HTML, and over the years I've seen that most people make the same mistakes -- in design or in coding. Here's my "top seven" list of what I consider to be the worst habits.

As mentioned before, the <td> and <th> tags (for table data and table headers, respectively), are equivalent except that table headers are automatically emphasized or boldface in most browsers. The discussion that follows lists only the <td> tag, but everything said also applies to <th>.

We have seen simple examples of how to create tables, but there is much more that the <table> and related tags can do. In this lesson, we will explore these powerful tags in greater detail.

We discussed in an earlier lesson how important it is not to try to force a precise page layout on the browser. By the same token, though, there are times when the nature of your content means you need to have at least a little control. A prime example of this is when you are presenting information that is organized into rows and columns, like a spreadsheet or grid.

What is the point of calling it the World Wide Web if there are no links between pages? You've no doubt been wondering about this as you waded through the past few lessons on the other kinds of tags: "Yeah, this is all fine, but how do I link?" Hopefully this page will answer that question!

The <img> tag is used for inserting graphics (images) into your document. It is a relatively simple tag but interacts with other tags in complex ways, so it gets a page all to itself.

These tags, like the document part tags, are quite frequently used. Luckily these are among the easiest to learn, and most of them are quite intuitive.

This page is a short collection of the tags most needed by beginning webmasters along with contextual information on how they are used. No matter what else you do, you will need to know these tags well because they are used constantly.