Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel Ringworld is the winner of the 1970 Hugo Award for Best Novel.

Fleet of Worlds takes a closer look at Human-Puppeteer (Citizen) relations and the events leading up to Niven's first Ringworld novel. Kirsten Quinn-Kovacks is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten's people came from.

For 12,000 years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Sheldon, creator of the revolutionary science of psychohistory, can see into the future, to a dark age of ignorance, barbarism, and warfare that will last 30,000 years. To preserve knowledge and save mankind, Seldon gathers the best minds in the Empire, both scientists and scholars, and brings them to a bleak planet at the edge of the Galaxy to serve as a beacon of hope for a fututre generations.

Adam Savage is a maker. From Chewbacca’s bandolier to a 1,000-shot Nerf gun, he has built thousands of spectacular projects as a special-effects artist and the cohost of MythBusters. Adam is also an educator, passionate about instilling the principles of making in the next generation of inventors and inspiring them to turn their curiosity into creation. In this practical and passionate guide, Adam weaves together vivid personal stories, original sketches and photographs from some of his most memorable projects, and interviews with many of his iconic and visionary friends.

Stranger in a Strange Land tells the story of Valentine Michael Smith, an earthling born and educated on Mars, who arrives on Earth with superhuman powers and a total ignorance of the mores of man. Smith is destined to become a freak, a media commodity, a scam artist, a searcher, and finally, a messiah.