Sign up for an exclusive coupon good on your next order.
By signing up you enjoy subscriber-only access to the latest news,
personalized book picks and special offers, delivered right to your inbox.
We never share your information and you can unsubscribe at any time.
Browse All Subjects
The Encyclopedia of Gemstones...
Buy from $1.99
Earth Inside and Out
Buy from $0.99
Crystal & Gem
Starting at $1.45
National Gem Collection
Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness
Starting at $3.00
Gem Identification Made Easy: A Hands-On Guide to More Confident Buying & Selling
Starting at $3.44
Field Notes from a Catastrophe: Man, Nature, and Climate Change
Starting at $0.99