Here are sample screen shots of Windows 10 and a few of the changes:
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The Start Menu is back:  It is customizable and includes metro apps which can be added an deleted.  Personalize your Start Menu the way you like it.




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Virtual Desktops:
You now have the ability to work in more than one desktop at the same time, switching back and forth as desired.
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Task View:
Now you have larger app thumbnails to make switching back and forth much easier.
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Modern apps on the desktop:
Now you can have multiple Modern apps on your desktop that you can resize.
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Snap Multiple Apps:
Now you can snap 4 apps in all four corners of the screen and have space left over for other apps.