Earth Satellites and the Race for Space Superiority, 1957
Rocket Power and Space FLIGHT, Henry Holt & Co., 1957
Man and the Space Frontier, 1962
The Third Industrial Revolution, Putnam, 1975 ISBN 0-399-11552-8
Shuttle into Space: A Ride in America's Space Transportation, 1978
The Third Industrial Revolution, Ace Science Fiction, May 1979 ISBN 0-441-80664-3
The Space Enterprise, Ace Science, August 1980 ISBN 0-441-77756-2
Confrontation in Space, Prentice-Hall, 1981
Space Power, Ace Science, September 1981 ISBN 0-441-77744-9
The Space Enterprise, 1982
The Hopeful Future, MacMillan, 1983 ISBN 0-02-614790-4
The Silicon Gods, Dell, October ISBN 0-440-08048-7, 1984
The Untold Story of The Computer Revolution, Arbor House, 1984 ISBN 0-87795-574-3
Frontiers of Science: Strange Machines You Can Build, Atheneum, 1985 ISBN 0-689-11562-8
Handbook for Space Colonists, Henry Holt & Co., 1985 ISBN 0-03-070741-2
On The Frontiers of Science, Atheneum, 1985 ISBN 0-689-11562-8
The Corporate Survivors, Amacom Books, 1986 ISBN 0-8144-5831-9
ICBM: The Making of the Weapon That Changed the World, Crown, 1991 ISBN 0-517-56768-7
Mind Machines You Can Build, Top Of The Mountain Publishing, 1992 ISBN 1-56087-075-3
Halfway to Anywhere, M. Evans and Company, N.Y., 1996 ISBN 0-87131-805-9
Living in Space, M. Evans & Co., 1997 ISBN 0-87131-841-5
The Manna Project: Business Opportunities in Outer Space, 1998