A press release from LonCon3:

On 1 May 2013, membership rates to join Loncon 3, the 2014 World Science Fiction Convention, will be increased as follows:

* Full Adult Attending membership rates will increase from £95 to £105 (US$170 / €135).

* Family membership rates, for two adults and two or more children, will increase from £230 to £245 (US$405 / €315).

* Discounts for pre-supporters of the London in 2014 bid will expire.

As part of the convention’s policy to encourage families and children to attend Loncon 3, the following Attending membership rates, based on the person’s age as of 14 August 2014, for Infants (0-5 years old), Children (6-15 years old) and Young Adults (16-25) will remain unchanged:

* Infants (0-5 years old) at £2 (US$3 / €3).
* Children (6-15 years old) at £30 (US$50 / €40).
* Young Adults (16-25 years old) at £65 (US$110 / €85).

The rate for a Supporting membership will also stay unchanged at £25 (US$40 / €35).

Existing membership status can be checked by emailing membership@loncon3.org.

Loncon 3 memberships are available for immediate purchase at various conventions, at http://www.loncon3.org, and by postal mail. Details of a plan for payment by installment will be announced soon.

Loncon 3 will take place in the ExCeL conference centre in London’s Docklands from 14-18 August 2014. The Guests of Honour cover the fields of fiction, comics, art, criticism, publishing and fandom: Iain M. Banks, John Clute, Malcolm Edwards, Chris Foss, Jeanne Gomoll, Robin Hobb and Bryan Talbot.