I went to a whole art exhibition of holograms as a kid that blew me away, and I've always wondered why holograms are so rare ever since. I had one for a while, the famous one of the microsope with the lens that you can actually look through to see a computer chip inside. There's nothing else like it.

There's a phenomenal book on this topic called "Holographic Visions" (ISBN 978-0198571223).

I've had the pleasure of working behind the scenes on holography related stuff (primarily optomechanics) for years now. Fascinating field full of phenomenally interesting minds.

I got to make one during a visit to the MIT museum maybe 25 years ago, was neat.

3blue1brown’s video on holography is one of the coolest math videos I’ve ever seen. Basically magic.

I wanted to pick up doing holography again, but I discovered that Integraf, founded by legend TJ ( https://www.integraf.com/about/tung-h-jeong ), stopped selling the film and supplies.

Much of the supply chain for modern hobbyist holography was sourced out of Russia, and the ongoing wars have made those materials unavailable.

There are some newer processes out there, but there were probably thousands of us that grew up using those HoloKit holography kits distributed by TJ.