Theia Smart Thumbnails for WordPress lets you customize the thumbnails for each of your images. Gone are the days when you had to manually crop or upload separate versions of your thumbnails. Now you can simply choose a point of interest for your image - e.g. a person's face, an object, etc. - and all the thumbnails will be automatically updated to include them. Your pages will be much more aesthetically pleasing and your visitors will thank you for it.