Ask around at any SF convention; it's a reasonably famous anecdote).

For many years, he had been a popular figure at SF conventions, widely known in science-fiction fandom as a wit and nonstop raconteur.

They are often associated with an SF convention or group of conventions, but maintain a separate existence as cultural institutions within specific geographic regions.

She has appeared as filk GOH at almost every filk convention and many regular SF conventions as well.

"When the hotel said you'd left with the whole SF convention, I took a chance and came to the chairman's house."

Comic science fiction often mocks or satirizes standard SF conventions like alien invasion of Earth, interstellar travel, or futuristic technology.

Finncon is the largest science fiction convention in Finland and, with up to 15,000 participants, one of the largest SF conventions in Europe.

Finncon is unique among SF conventions because it has no participation/membership fee, and is funded primarily on various cultural grants as well as income from traders.

These events have become much larger than traditional SF conventions; nearly a hundred thousand people attend Comic-Con in San Diego each year.

Fan letters, fanzines and the many SF conventions around the world can be seen as responses to such experiences of reading SF.