Existence
Essence, Idea, Abstraction, Predicate (grammar), Etymology, Avicennism, Existence of God, Meaning of life »

Sundiver
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The Practice Effect
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Exiles
The Second Uplift Trilogy »

Elevation
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Otherness
Collected Stories By A Modern Master Of Science Fiction »

Foundation's Triumph
Hari Seldon, creator of the science of psychohistory, escapes from exile on the distant planet of Trantor and searches the galaxy for a new galactic enigma, ... »

Existence
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The River of Time
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Sun Diver
Before the arrival of homo sapiens, five Patron Lines were established to govern the creation and interaction of species. Over time the Lines and the Galacti... »