"Spacefarers Unlock an Ancient Secret"
From the back cover:
"Welcome to quaint, old-fashioned Anson, where life proceeds at the leisurely and graceful pace of the 20th century. Forget the rush and bustle of spacefaring civilization and learn the simple pleasures of:
Organized crime and guerilla warfare in the steaming jungle
Back-breaking labor for starvation wages
Bugs, beasts and slimy critters in their native habitat ... and your bedding
Delightful, primitive religious rite (with a special place reserved for you!)
And don't worry about your ultra-tech gadgets and luxuries. The polite and efficient customs officers will return them in perfect condition – if you get back."