ft. Lazarus Long

• Methuselah's Children (1958)
• Time Enough for Love (1973)
• The Number of the Beast (1980)
• The Cat Who Walks Through Walls (1985)
• To Sail Beyond the Sunset (1987)

semantics; language

• Gulf (1949)
• If This Goes On– (1940)
• Stranger in a Strange Land (1961)

etc

• Between Planets (1951)
• The Moon is a Harsh Mistress (1966)