WordPress.org

Installation is easy:

Through backend:

• Search for 'slideshare'.
• Install and activate the plugin.
• Start embedding SlideShare presentations!

Through FTP:

• Download the plugin.
• Unzip the plugin file.
• Upload the slideshare folder to the plugins directory of your blog.
• Enable the plugin in your admin panel.
• Start embedding SlideShare presentations!

If you want to change the default width:

• Go to the options panel under Options.
• Choose the width you want the presentations to have.
• Press "Update Settings".
• You're done.