Below is an image I turned into an embeddable infographic that you can use to improve your computer skills. As you see, it contains shorcuts of some of the services we use almost everyday such as Word, Excel, Outlook. It also features shortcuts for Microsoft Windows. I took this image from this great Livebinder under the category named " Office Shortcut ".
If the the image is not readable enough for you then visit this article where you can have access to all the shortcuts for both Windows and Mac.