A few facts regarding the Hugo Award

The Hugo Awards are a set of literary awards given annually for the best science fiction or fantasy works and achievements of the previous year. The awards are named after Hugo Gernsback, the founder of the pioneering science fiction magazine Amazing Stories, and were officially named the Science Fiction Achievement Awards until 1992. Organized and overseen by the World Science Fiction Society, the awards are given each year at the annual World Science Fiction Convention as the central focus of the event. They were first given in 1953, at the 11th World Science Fiction Convention, and have been awarded every year since 1955. (Wikipedia, accessed 28 March 2019)

The World Science Fiction Society (WSFS) is a literary society, and its members are fans.

The Hugo Awards are selected by a vote of the members of the World Science Fiction Convention (Worldcon) in a two-stage process. The first stage is nominating (which starts in early 2019) and the second stage is the final ballot that includes those works/people that received enough nominations in the first stage (which starts later in 2019). (thehugoawards.org)

Nominated and voted by fans who are members, and present at the convention.

Hugo Awards for Jack Vance: