How I Created My Front Cover...

"alter (a photographic image) digitally using Photoshop image-editing software."

I opened up Photoshop and started from scratch - by selected "New".

I selected " International paper" as it comes up with all the correct width, height and resolution etc.... for a Front Cover to be an A4.

I inserted an image into Photoshop that'll be my background for my Front Cover.
You do this by selecting "file" and "insert image".Place it in the correct size you want it.

I modified it with adding effect upon the image layer; Posterize, Exposure, Brightness/Contrast, Photo Filter, Vibrance and more...