Stereogram Books: Blue Mountain Press, publisher of...

Stereogram Books: Blue Mountain Press, publisher of alternative greeting cards, is introducing a series of books of 5-D stereograms, which are pictures that change to reveal hidden images.

The pages at first appear to be a series of blurry, multicolored images, but as the eye lingers, the images change to reveal a pictorial message. The series includes “Endangered Species in 5-D Stereograms,” “Love in 5-D Stereograms” and “Reach for Your Dreams in 5-D Stereograms.”

Five percent of the proceeds from the sale of “Endangered Species,” which sells for $12.95, will be donated to Defenders of Wildlife, a group dedicated to the conservation of wildlife and natural habitats.

“Love in 5-D” and “Reach for Your Dreams” sell for $17.95.