Hologram Stamps: A Fascinating Blend of Science and Philately (Featuring a New 2026 Book Release) There is something truly mesmerizing about hologram stamps. Unlike traditional postage stamps, hologram stamps interact with light, shifting colors and reflections as you move them. They feel alive. For collectors like us, they represent a perfect intersection between art, science, and innovation. And recently, I had the pleasure of learning about a newly updated book that dives deep into this fascinating topic. A New Reference Book … Continue reading →