An incredible man-made object has been discovered in Known Space, and an equally incredible expedition is sent to study it. It consists of Louis Wu, an adventurer who has lived too many years of too much of a life; Ness, a member of Pearson's race of puppeteers, always shaking with fear and capable of self-defense except in a state of madness; Tila Brown, a girl with no connections, no experience, no talent — but with luck the likes of which no one has ever received from nature; and Speaker-to-Animals, the kzin, the huge, predatory, orange-skinned son of the most ferocious tribe in the universe. The novels included in this book belong to one of the most famous fantasy series, no less popular than Isaac Asimov's Foundation, "A Space Odyssey" by Arthur C. Clarke, "Dune" by Frank Herbert, "Steel Rat" by Harry Harrison. Ringworld was awarded the Hugo, Nebula, Locus, Seiun and Dietmar awards. “Ringworld Builders” was nominated for a Hugo. Both novels are being published in a new translation.