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
GuruBlog - new background image
How To Add Background Image in Blender | Create 3D Art
How To Change The World's Background in Blender 2.9 - Sketch Overflow
Add a Background Image – Blender Knowledgebase
Designing Animation Backgrounds Using Blender & Photoshop | The Gnomon Workshop
How to Render a Background Image in Blender 2.8 Using a Camera Background Image - Henry Egloff