Sylvia Engdahl

See bio under Sylvia Engdahl. (Her middle name was used only on some hardcover editions of her Young Adult novels. Her novels for adults therefore are not included in lists where it appears.)

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Books27

Anywhere, Anywhen

Anywhere, Anywhen

The doors of the universe

The doors of the universe

Intellectual property rights

Intellectual property rights

Tool for tomorrow

Tool for tomorrow

Prescription drugs

Prescription drugs

Beyond the Tomorrow Mountains

Beyond the Tomorrow Mountains

The Captain of Estel

The Captain of Estel

Our world is Earth

Our world is Earth

Universe ahead

Universe ahead

Driving

Driving

War

War

Mobile apps

Mobile apps

Stewards of the Flame

Stewards of the Flame

Alternative therapies

Alternative therapies

Scientific Research

Scientific Research

2015

Obesity

Obesity

2014

Chronic Fatigue Syndrome

Chronic Fatigue Syndrome

2011

Animal Welfare

Animal Welfare

2010

The Subnuclear Zoo: New Discoveries in High Energy Physics

The Subnuclear Zoo: New Discoveries in High Energy Physics

1977

The Planet Girded Suns; Man's View Of Other Solar Systems

The Planet Girded Suns; Man's View Of Other Solar Systems

1974

The Planet-Girded Suns: The History of Human Thought About Extrasolar Worlds

The Planet-Girded Suns: The History of Human Thought About Extrasolar Worlds

1974

This Star Shall Abide

This Star Shall Abide

1972

This Star Shall Abide: aka Heritage of the Star

This Star Shall Abide: aka Heritage of the Star

1972

Heritage Of The Star

Heritage Of The Star

1972

The Far Side Of Evil

The Far Side Of Evil

1971

Journey Between Worlds

Journey Between Worlds

1970

Enchantress from the Stars

Enchantress from the Stars

1970