Varley was born in Austin, Texas. He grew up in Fort Worth, moved to Port Arthur in 1957, graduated from Nederland High School—all in Texas—and went to Michigan State University on a National Merit Scholarship. He started as a physics major, switched to English, then left school before his 20th birthday and arrived in Haight-Ashbury district of San Francisco just in time for the "Summer of Love" in 1967. There he worked at various unskilled jobs, depended on St. Anthony's Mission for meals, and panhandled outside the Cala Market on Stanyan Street (since closed) before deciding that writing had to be a better way to make a living. He was serendipitously present at Woodstock in 1969 when his car ran out of gas a half-mile away. He also has lived at various times in Portland and Eugene, Oregon, New York City, San Francisco again, Berkeley, and Los Angeles.

Varley has written several novels (his first attempt, Gas Giant, was, he admits, "pretty bad") and numerous short stories, many of them in a future history, "The Eight Worlds". These stories are set a century or two after a race of mysterious and omnipotent aliens, the Invaders, have almost completely eradicated humans from the Earth (they regard whales and dolphins to be the superior Terran lifeforms and humans only a dangerous infestation). But humans have inhabited virtually every other corner of the Solar System, often through the use of biological modifications learned, in part, by eavesdropping on alien communications.

Varley was born in Austin, Texas. He grew up in Fort Worth, moved to Port Arthur in 1957, graduated from Nederland High School—all in Texas—and went to Michigan State University on a National Merit Scholarship. He started as a physics major, switched to English, then left school before his 20th birthday and arrived in Haight-Ashbury district of San Francisco just in time for the "Summer of Love" in 1967. There he worked at various unskilled jobs, depended on St. Anthony's Mission for meals, and panhandled outside the Cala Market on Stanyan Street (since closed) before deciding that writing had to be a better way to make a living. He was serendipitously present at Woodstock in 1969 when his car ran out of gas a half-mile away. He also has lived at various times in Portland and Eugene, Oregon, New York City, San Francisco again, Berkeley, and Los Angeles.

Varley has written several novels (his first attempt, Gas Giant, was, he admits, "pretty bad") and numerous short stories, many of them in a future history, "The Eight Worlds". These stories are set a century or two after a race of mysterious and omnipotent aliens, the Invaders, have almost completely eradicated humans from the Earth (they regard whales and dolphins to be the superior Terran lifeforms and humans only a dangerous infestation). But humans have inhabited virtually every other corner of the Solar System, often through the use of biological modifications learned, in part, by eavesdropping on alien communications.