You'll often see "sent with invisible ink" used as a tongue-in-cheek disclaimer online, a digital shorthand to signal anything from a bold opinion to a private confession.

For many iMessage users, invisible ink offers the illusion of discretion — and a dramatic flourish.

The Lady in the Car with Glasses and a Gun – was there ever a better title to sum up the world of the noir thriller? The narrative delivers all the key genre elements in a plot of audacious ...

Jim writes: We recently remodeled our kitchen, and my 10-year-old son wrote, “Are you eating cereal?” on the new countertop in invisible ink. We can’t see it unless we shine a UV light on ...

Living Ink Technologies is adding a biotech twist to the old invisible-ink trick for a fun algae-based Kickstarter project.

The secret history of invisible ink. American Expeditionary Forces secret ink lab By signing up, you confirm that you are over the age of 16 and agree to receive occasional promotional offers for ...

Jimmy Fallon has suggested another unique sales opportunity for Donald Trump to fool people — the upcoming solar eclipse.