i) How to blend two images together without using blend modes ii) Gradient tool settings
The Patch tool is useful for removing objects or correcting imperfections.
With Content-Aware Move tool you can move area and in fill the hole that it leaves behind. It will also merge the moved area to the new position.
Content-Aware Crop fills in the edges of a cropped and rotated image.
Yet another way to erase backgrounds.
How to make selections with pen tool in Photoshop and use Path selection & Direct selection tools.
4 ways to use masks in Photoshop.
Photoshop Essentials in 2 Hours.
This tutorial shows a simple way to create arrows using line and custom shape tools. I also modify the arrows a little bit using some effects and transform tools.