For the "Cross-eyed" versions, sit 2 feet back for your monitor, cross your eyes causing 3 images to appear, slowly begin to focus on the "center" image. Click here for more detailed instructions and a practice image.

For the anaglyph images, best results are achieved by using Cyan/Red 3D glasses. However the classic Red/Blue glasses will work. Place the red lens over your left eye and the cyan (or blue) lens over your right eye. If you don't have any 3D glasses, try some cellophane, or if you're an astronomer use a red and blue eyepiece filter over each eye.