Working with Layers

Understanding Layers
What is a layer?

A layer is simply one image stacked on top of another.
How to merge layers
Merging layers can be very powerful.

A-Setting background
unlooking te background is an important step.
The background cannot be moved unless it is redefined as a layer.
Double click on it, photoshop will tries to named layer 0

Once the background is redefined as a layer, not only can you set layers below it, you can also acheive transparency through it. Normally, with a background, if you erase the background, or increase the canvas size, what shows through is the background color on the color palette, whatever that maybe. (very important to remember this)

B-Merging down

To combine two layers into one.
Merge down
Mergedown: combine two layers of the adjustments. (very hard to separe them)