If you are expecting to be able to click a button and change fonts throughout your blog then it’s not that easily done on e free hosted WordPress.com blog. These are 3 ways to change fonts on WordPress.com blogs.
(1) Changing font families, colors and size in text in posts or pages either post by post or page by page by coding into the HTML editor. http://en.support.wordpress.com/editors/font-size-color/
(2) Changing font colors in text in posts or pages either post by post or page by page using the #4 icon (Select text color – change the text color) in Row 2 the Visual editor. http://en.support.wordpress.com/visual-editor/#row-2
(3) Changing all font families, colors and sizes throughout the whole blog by purchasing an annually renewable Custom Design upgrade and using Typekit Fonts with Staff support. http://en.support.wordpress.com/custom-design/
Note: Any font changes to font families, colors and size in the blog title, tagline, post titles, page titles, categories and tags cannot be done without CSS editing.
Reference links:
Microsoft Word
Windows Live Writer
writing and formatting poetry
As you are copying and pasting from Word it's important to do this > Go to Settings > Writing and select “ ___ WordPress should correct invalidly nested XHTML automatically” and then scroll down and click “Save Changes.” Please see here also so you know how to do this correctly in the future. http://en.support.wordpress.com/visual-editor/#pasting-text