Here you have the option to add tags and categories. Tags are discussed on page 27, and categories on page 26.
From this screen you may also add new categories, instead of going to the Categories tab. Just below that you will
have the option to post a thumbnail. This step is unnecessary for the general blog, as you will either have the choice to
create an excerpt, including an image, or an excerpt will be generated for you if you do not specifiy (below).
By adding an excerpt, you are controlling what/how much is shown on the main blog page for each entry. If you
choose not to provide an excerpt, one will be automatically generated for the post. The default length is 1024
characters, which can be adjusted under the Settings > Writing section.
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