A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, help } from '@wordpress/icons';
<Icon icon={help} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M12 4.75a7.25 7.25 0 100 14.5 7.25 7.25 0 000-14.5zM3.25 12a8.75 8.75 0 1117.5 0 8.75 8.75 0 01-17.5 0zM12 8.75a1.5 1.5 0 01.167 2.99c-.465.052-.917.44-.917 1.01V14h1.5v-.845A3 3 0 109 10.25h1.5a1.5 1.5 0 011.5-1.5zM11.25 15v1.5h1.5V15h-1.5z"></path></svg>
help – WordPress Icon Library