Helsinki was the 2017 Worldcon, officially called "Worldcon 75", held August 9-13, 2017 at the Helsinki Exhibition and Convention Centre in Helsinki, Finland. The GoHs were John-Henri Holmberg, Nalo Hopkinson, Johanna Sinisalo, Claire Wendling (did not attend due to illness), Walter Jon Williams, and Science Guest Ian Stewart.
A late surge in membership caused overcrowding problems in the programme rooms on the first day, forcing the committee to close membership sales for subsequent days, the first time this has happened for a Worldcon. Some extra programme space was made available later in the con, but the queues snaking round and round the conference space remained for the whole event, and most items continued to be turn people away. Final membership count was 7060 attending, 3374 other participants, 110 exhibitors, 7 helpers, a total of 10434. This is the second highest attending (after L.A.con II) and third highest overall (after Sasquan and Loncon 3).
The guerrilla newsletter was called OffPiste, see file below.
Progress Report 6 (available below) was produced after the convention, and is full of con reports and links to 3rd party reports.
|MidAmeriCon II||Worldcon Bidding, Hugos||Worldcon 76|
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