Discover Christmas in 3D: 50 hidden pictures waiting to appear within colorful festive patterns. Enjoy that little moment of wonder when a secret comes into view—and share the joy with family and friends.
No 3D glasses needed
Seeing your first hidden 3D picture can take a little practice. Try the practice strip and give yourself time for the picture to appear. Need another approach? Our short guide explains two more ways to see it.
Open the guide
This magnificent book brings together 50 hidden images in a full-color collection made for lingering over, returning to, and sharing with family and friends.
50 hidden pictures · 62 full-color pages · Paperback
Discover Christmas in 3D: 50 hidden pictures waiting to appear within colorful festive patterns. Enjoy that little moment of wonder when a secret comes into view—and share the joy with family and friends.
Dive beneath the waves, where whales, sea turtles and other ocean wonders hide in shimmering underwater patterns, waiting for you to find them.
Hidden 3D pictures are called autostereograms, or stereograms for short. They look like flat, repeating patterns, but when you look through the page, your eyes and brain turn the pattern into a picture with real depth.
Your eyes sit about 2½ inches apart, so each one sees the world from a slightly different spot, and your brain turns the difference into depth. A stereogram repeats its pattern across the page. When you look through it, each eye lines up a different copy, and tiny shifts in the pattern add up to a hidden shape.
Praying mantises see in 3D too – scientists proved it by fitting them with tiny 3D glasses.