Adding new posts to Blogger is very simple. In the Blogger admin panel, there's an orange button in the upper left labeled "New Post." Hit that button and it brings you to a form where you can enter your post.
There's a space at the top where you can enter a title for the post. This title will appear at the top of the post and on the blog's front page. The main post entry window is basically a word processor. You enter your text and format it with a variety of buttons, making words bold, italic, different colors, adding links, bullet lists and so on. You can insert a jump break as well – everything above the break will appear on the front page, while the rest of the post will only show up if someone goes to that specific post.
If you'd rather format your post directly using HTML, that option is also available. You can even switch back and forth between the HTML and WYSIWYG (What You See Is What You get) editors.
Adding pages to a Blogger blog is similar to adding a post. From the admin panel, find the "Pages" link on the left side. That will open up a list of the current pages, and a button labeled "Add New Page." You can create and format the new page much like a post. The key difference is the tab bar at the top of your blog. If you go to the front page of your blog, you'll see a bar which has, depending on your settings and the design of the blog, a link called "Home." New pages will show up in that bar. This allows you to add an "About" page, an FAQ, or a series of category pages. You can also change the behavior of this bar and how pages appear in it via the "Show pages as" dialog.
Removing posts and pages is easy. There's a "delete" option available for every post and page in the admin panel.
You probably want to add more than text to your blog posts. In the next section, we'll see how Blogger handles photos.