Code Girls
The Untold Story of the American Women Code Breakers of World War II
The Untold Story of the American Women Code Breakers of World War II
A popular collection of classic math and logic puzzles first published in the Soviet Union in 1956
Beautifully crafted books from the world of science, technology and natural history
A historical look at the world of codes and ciphers, from ancient Egyptian texts to cutting edge quantum cryptography
Hilarious scientific answers to absurd hypothetical questions, from the creator of the wildly popular webcomic xkcd
Stylish American made socks delivered to your door once a month
Let your recipient pick the projects they want to support, choose from thousands of local projects across the globe
Treat someone to a meal out at their favorite restaurant, or try somewhere new
Not sure what to get? An Amazon gift card is a safe choice
These are the slippers your intended gift recipient never knew they needed – high quality and with detachable soles for outdoor use
Socks? If you're going to go with a classic gift, you can't go wrong with Happy Socks!