A Tor double, two books in one. Both good. Bought at The Book Rack in Auburn, AL, for $2.
Silent Thunder by Dean Ing:
About a Nazi secret weapon called Donnersprache (German for "Thunderspeak"), an electronic device which can enhance the charisma of a human voice. Once used by Hitler to whip the German people into a frenzy of hate, it is now being used in modern America for a sinister purpose, and someone has o stop the nation from sliding into a new fascism.
Books by Dean Ing:
The Magic May Return edited by Larry Niven
New Destinies edited by Jim Baen, contains "Briar Patch"
Universe by Robert A. Heinlein:
The Ship had been travelling for so long that the crew had forgotten it's purpose, origin, and destination. How could the Ship be moving, when the Ship is all there is? A man is born lives, dies, and goes to the Converter, or so everyone thinks. But Hugh Hoyland is about to find out the truth about the Ship and the muties that live on the inner decks.
The muties are led by Joe-Jim Gregory, a man with two heads. He often argues with himself, or plays checkers, or cheats himself at cards. I like the idea of Joe-Jim, a character often at odds with himself in a literal fashion.
Books by Robert A. Heinlein:
Beyond This Horizon
Stranger In A Strange Land
The Cat Who Walks Through Walls
The Door Into Summer
The Star Beast
To Sail Beyond The Sunset
I Will Fear No Evil
The Man Who Sold The Moon (older edition)
The Man Who Sold The Moon (newer edition)
Orphans of the Sky
Worlds To Come edited by Damon Knight, contains "Ordeal In Space"
First Contact edited by Damon Knight, contains "Goldfish Bowl"
New Destinies edited by Jim Baen, contains "This I Believe"