Alignment Tool, Move Tool, Crop Tool, Rotate Tool, Scale Tool, Shear Tool, Perspective Tool, Flip Tool, Cage Transformation Tool.
You can access transform tools with toolbar or shortcut keys or from menu Tools-Transform Tools.
Examples:
Our original picture:
Flip effect:
Cage Transformation effect:
If you wish to watch our video about Transform Tools in Gimp, click link:
https://youtu.be/rT3dTJ_6DbY
Applied in Linux Mint 17 and GIMP 2.8.10
Date of Article: 21.02.2016