You are trying to install or open an app that didn't come from the Mac App Store but you got a message saying App can't be opened because it is from an unidentified developer. This is how you bypass it.
In this interesting Photoshop tutorial I will show you how to move, rotate, resize and overlap individual letters, numbers and other characters in text.
Windows 8 also brings a very transparent tool for examining global indices, where you can also optionally keep track of the value of individual shares.