Protect Your Love Life! Valentine’s Secret Ink Guest Post from Kristie Macrakis
In celebration of Valentine’s Day, we have a special guest post from Kristie Macrakis, author of the forthcoming Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda. Read on for lovers’ secrets and be sure to watch the special Valentine’s Day video on secret writing techniques. Kristie