Due to a scheduled upgrade, computers and printing services (including Princh) will be unavailable on Tuesday 3 November.
On Wednesday 4 November, computers will be available, but printing (including Princh) will remain unavailable all day.
All services are expected to return to normal on Thursday 5 November.
We apologise for any inconvenience caused.
The shortlist was selected by young people in Islington secondary schools and colleges. Voting ends on 10 February and the winner will be announced at a special by invitation event at Waterstones book shop at Islington Green in March around World Book Day, with exciting prizes for some voters.