WordPress.org

To install Authors Widget follow the following steps:

1. Unpack authors.zip to /wp-content/plugins/authors/ directory
2. Activate the plugin through the 'Plugins' menu in WordPress
3. Go to 'Presentation' or 'Design' or 'Appearance' menu
4. Go to 'Widgets' menu
5. Drag & Drop the Authors Widget to the place on your sidebar where you would like to display the authors' list

Optionally you can change the following settings:

1. Title
2. Format: list | cloud | dropdown
3. Order by: name | post count
4. Number of authors to show
5. Show Avatar
6. Avatar size
7. Show RSS links
8. Show post counts
9. Exclude admin
10. Hide credit
11. Save the changes

And you're welcome to donate to keep the plugin developed