They don't invite you to nominate books, you get to vote if you are a member of the World Science Fiction Convention: http://www.thehugoawards.org/i-want-to-vot

They don't invite you to nominate books, you get to vote if you are a member of the World Science Fiction Convention: http://www.thehugoawards.org/i-want-to-vote/ http://www.thehugoawards.org/i-want-to-vote/