Background Images in 2.8 - Basics & Interface - Blender Artists Community
How to Render a Background Image in Blender 2.8 Using a Camera Background Image - Henry Egloff
Viewport: World Background - User Feedback - Developer Forum
Please add background image feature as in blender 2.79,in blender 2.8 we can't see the background image from front,top and side views - User Feedback - Developer Forum